CI: Linting error
I'm working on #25424, after rebase to upstream/master, I get [linting errors](https://dev.azure.com/pandas-dev/pandas/_build/results?buildId=9370). 
error F632,  E117 are simple fix.
error F821 is type hints as flakes8 cannot detect buildin type. 
I can fix as:
a. add `#noqa` at the end line
b. add build in option in setup.cfg
```
builtins =
    _,
    _LE,
    _LW
```


```
##[error]./pandas/tests/indexes/interval/test_interval_tree.py(162,20): error F632: use ==/!= to compare str, bytes, and int literals
##[error]./pandas/tests/frame/test_alter_axes.py(204,32): error F632: use ==/!= to compare str, bytes, and int literals
##[error]./pandas/tests/frame/test_alter_axes.py(204,51): error F632: use ==/!= to compare str, bytes, and int literals
##[error]./pandas/tests/frame/test_alter_axes.py(1275,13): error E117: over-indented (comment)
##[error]./pandas/tests/io/test_pytables.py(2389,13): error E117: over-indented
##[error]./pandas/tests/series/test_rank.py(424,9): error E117: over-indented
##[error]./pandas/tests/series/test_rank.py(442,9): error E117: over-indented
##[error]./pandas/tests/series/test_rank.py(460,9): error E117: over-indented
##[error]./pandas/tests/series/test_rank.py(479,9): error E117: over-indented
##[error]./pandas/tests/series/test_rank.py(497,9): error E117: over-indented
##[error]./pandas/tests/series/test_rank.py(506,9): error E117: over-indented (comment)
##[error]./pandas/tests/series/test_rank.py(507,9): error E117: over-indented
##[error]./pandas/tests/groupby/test_grouping.py(652,13): error E117: over-indented (comment)
##[error]./pandas/tests/groupby/test_grouping.py(653,13): error E117: over-indented (comment)
##[error]./pandas/tests/groupby/test_grouping.py(654,13): error E117: over-indented (comment)
##[error]./pandas/tests/groupby/test_grouping.py(655,13): error E117: over-indented
##[error]./pandas/tests/groupby/test_apply.py(12,9): error E117: over-indented (comment)
##[error]./pandas/io/formats/format.py(443,45): error E117: over-indented (comment)
##[error]./pandas/core/frame.py(6219,33): error F821: undefined name 'Union'
##[error]./pandas/core/frame.py(6219,33): error F821: undefined name 'List'
##[error]./pandas/core/frame.py(6221,33): error F821: undefined name 'Union'
##[error]./pandas/core/frame.py(6223,9): error F821: undefined name 'Union'
##[error]./pandas/core/common.py(96,5): error F821: undefined name 'Any'
##[error]./pandas/core/base.py(789,9): error F821: undefined name 'ExtensionArray'
##[error]./pandas/core/indexes/base.py(3635,9): error F821: undefined name 'Union'
##[error]./pandas/core/dtypes/base.py(67,9): error F821: undefined name 'Optional'
##[error]./pandas/core/dtypes/base.py(67,9): error F821: undefined name 'List'
##[error]./pandas/core/dtypes/dtypes.py(940,17): error E117: over-indented
##[error]./pandas/core/arrays/sparse.py(82,9): error F821: undefined name 'Union'
##[error]./pandas/core/arrays/sparse.py(82,9): error F821: undefined name 'Any'
##[error]./pandas/core/arrays/sparse.py(375,5): error F821: undefined name 'ndarray'
##[error]./pandas/core/arrays/sparse.py(400,5): error F821: undefined name 'Callable'
##[error]./pandas/core/arrays/sparse.py(400,5): error F821: undefined name 'Any'
##[error]./pandas/core/arrays/sparse.py(674,9): error F821: undefined name 'SparseIndex'
##[error]./pandas/core/arrays/array_.py(10,25): error F821: undefined name 'Sequence'
##[error]./pandas/core/arrays/array_.py(11,25): error F821: undefined name 'Optional'
##[error]./pandas/core/arrays/array_.py(11,25): error F821: undefined name 'Union'
##[error]./pandas/core/arrays/array_.py(11,25): error F821: undefined name 'np'
##[error]./pandas/core/arrays/array_.py(11,25): error F821: undefined name 'ExtensionDtype'
##[error]./pandas/core/arrays/integer.py(513,9): error F821: undefined name 'ndarray'
##[error]./pandas/core/arrays/datetimelike.py(61,9): error F821: undefined name 'Union'
##[error]./pandas/core/arrays/datetimelike.py(61,9): error F821: undefined name 'Tuple'
##[error]./pandas/core/arrays/datetimelike.py(71,9): error F821: undefined name 'Union'
##[error]./pandas/core/arrays/datetimelike.py(71,9): error F821: undefined name 'Timestamp'
##[error]./pandas/core/arrays/datetimelike.py(71,9): error F821: undefined name 'NaTType'
##[error]./pandas/core/arrays/datetimelike.py(92,9): error F821: undefined name 'Union'
##[error]./pandas/core/arrays/datetimelike.py(92,9): error F821: undefined name 'Timestamp'
##[error]./pandas/core/arrays/datetimelike.py(92,9): error F821: undefined name 'NaTType'
##[error]./pandas/core/arrays/datetimelike.py(112,9): error F821: undefined name 'Union'
##[error]./pandas/core/arrays/datetimelike.py(112,9): error F821: undefined name 'Timestamp'
##[error]./pandas/core/arrays/datetimelike.py(112,9): error F821: undefined name 'NaTType'
##[error]./pandas/core/arrays/datetimelike.py(353,9): error F821: undefined name 'ndarray'
##[error]./pandas/core/arrays/datetimelike.py(463,21): error F821: undefined name 'Union'
##[error]./pandas/core/arrays/datetimelike.py(463,21): error F821: undefined name 'Sequence'
##[error]./pandas/core/arrays/datetimelike.py(463,21): error F821: undefined name 'Sequence'
##[error]./pandas/core/arrays/datetimelike.py(464,21): error F821: undefined name 'Union'
##[error]./pandas/core/arrays/datetimelike.py(464,21): error F821: undefined name 'NaTType'
##[error]./pandas/core/arrays/datetimelike.py(464,21): error F821: undefined name 'Scalar'
##[error]./pandas/core/arrays/datetimelike.py(464,21): error F821: undefined name 'Sequence'
##[error]./pandas/core/arrays/datetimelike.py(464,21): error F821: undefined name 'Scalar'
##[error]./pandas/core/arrays/datetimes.py(277,20): error F821: undefined name 'Union'
##[error]./pandas/core/arrays/datetimes.py(517,9): error F821: undefined name 'Union'
##[error]./pandas/core/arrays/period.py(183,9): error F821: undefined name 'Sequence'
##[error]./pandas/core/arrays/period.py(183,9): error F821: undefined name 'Optional'
##[error]./pandas/core/arrays/period.py(246,9): error F821: undefined name 'Union'
##[error]./pandas/core/arrays/period.py(246,9): error F821: undefined name 'NaTType'
##[error]./pandas/core/arrays/period.py(539,22): error F821: undefined name 'Union'
##[error]./pandas/core/arrays/period.py(539,22): error F821: undefined name 'Index'
##[error]./pandas/core/arrays/period.py(539,22): error F821: undefined name 'ExtensionArray'
##[error]./pandas/core/arrays/period.py(540,21): error F821: undefined name 'Callable'
##[error]./pandas/core/arrays/period.py(540,21): error F821: undefined name 'Any'
##[error]./pandas/core/arrays/period.py(540,21): error F821: undefined name 'Any'
##[error]./pandas/core/arrays/period.py(713,5): error F821: undefined name 'Sequence'
##[error]./pandas/core/arrays/period.py(713,5): error F821: undefined name 'Optional'
##[error]./pandas/core/arrays/period.py(713,5): error F821: undefined name 'Optional'
##[error]./pandas/core/arrays/base.py(216,9): error F821: undefined name 'Union'
##[error]./pandas/core/arrays/base.py(216,9): error F821: undefined name 'Any'
##[error]./pandas/core/arrays/base.py(289,9): error F821: undefined name 'ExtensionDtype'
##[error]./pandas/core/arrays/base.py(297,9): error F821: undefined name 'Tuple'
##[error]./pandas/core/arrays/base.py(345,9): error F821: undefined name 'Union'
##[error]./pandas/core/arrays/base.py(368,9): error F821: undefined name 'ndarray'
##[error]./pandas/core/arrays/base.py(600,9): error F821: undefined name 'Tuple'
##[error]./pandas/core/arrays/base.py(600,9): error F821: undefined name 'ndarray'
##[error]./pandas/core/arrays/base.py(600,9): error F821: undefined name 'Any'
##[error]./pandas/core/arrays/base.py(625,9): error F821: undefined name 'Tuple'
##[error]./pandas/core/arrays/base.py(625,9): error F821: undefined name 'ndarray'
##[error]./pandas/core/arrays/base.py(728,9): error F821: undefined name 'Sequence'
##[error]./pandas/core/arrays/base.py(728,9): error F821: undefined name 'Optional'
##[error]./pandas/core/arrays/base.py(728,9): error F821: undefined name 'Any'
##[error]./pandas/core/arrays/base.py(855,9): error F821: undefined name 'Callable'
##[error]./pandas/core/arrays/base.py(855,9): error F821: undefined name 'Any'
##[error]./pandas/core/arrays/base.py(855,9): error F821: undefined name 'Optional'
##[error]./pandas/core/arrays/base.py(900,9): error F821: undefined name 'Sequence'
##[error]./pandas/core/groupby/groupby.py(1043,13): error F821: undefined name 'typing'
##[error]./pandas/core/groupby/groupby.py(1052,13): error F821: undefined name 'typing'
##[error]./pandas/core/groupby/groupby.py(1741,13): error F821: undefined name 'Optional'
##[error]./pandas/core/groupby/groupby.py(1741,13): error F821: undefined name 'typing'
##[error]./pandas/core/groupby/groupby.py(1756,13): error F821: undefined name 'Optional'
##[error]./pandas/core/groupby/groupby.py(1756,13): error F821: undefined name 'typing'
##[error]./pandas/core/internals/blocks.py(1830,9): error F821: undefined name 'Optional'
##[error]./pandas/core/internals/blocks.py(1830,9): error F821: undefined name 'BlockPlacement'
##[error]./pandas/core/internals/blocks.py(1830,9): error F821: undefined name 'Any'
##[error]./pandas/core/internals/blocks.py(1830,9): error F821: undefined name 'List'
##[error]./pandas/core/internals/managers.py(1865,5): error F821: undefined name 'List'
##[error]./pandas/core/internals/managers.py(1865,5): error F821: undefined name 'Optional'
##[error]./pandas/core/internals/managers.py(1865,5): error F821: undefined name 'Union'
##[error]./pandas/core/internals/managers.py(1865,5): error F821: undefined name 'ExtensionDtype'
Linting .py code DONE
Linting .pyx code
##[error]pandas/_libs/tslibs/nattype.pyx(356,42): error E261: at least two spaces before inline comment
```