CI: Linux 32 bit on MacPython/pandas-wheels, test_pairwise_with_self and test_no_pairwise_with_self fails
https://dev.azure.com/pandas-dev/pandas-wheels/_build/results?buildId=53458&view=results

```
2021-02-02T04:33:27.6929603Z =========================== short test summary info ============================
2021-02-02T04:33:27.6930740Z FAILED ../../venv/lib/python3.7/site-packages/pandas/tests/window/test_pairwise.py::TestPairwise::test_pairwise_with_self[pairwise_frames0-<lambda>3]
2021-02-02T04:33:27.6931802Z FAILED ../../venv/lib/python3.7/site-packages/pandas/tests/window/test_pairwise.py::TestPairwise::test_pairwise_with_self[pairwise_frames3-<lambda>3]
2021-02-02T04:33:27.6932849Z FAILED ../../venv/lib/python3.7/site-packages/pandas/tests/window/test_pairwise.py::TestPairwise::test_pairwise_with_self[pairwise_frames4-<lambda>3]
2021-02-02T04:33:27.6933888Z FAILED ../../venv/lib/python3.7/site-packages/pandas/tests/window/test_pairwise.py::TestPairwise::test_pairwise_with_self[pairwise_frames6-<lambda>3]
2021-02-02T04:33:27.6935070Z FAILED ../../venv/lib/python3.7/site-packages/pandas/tests/window/test_pairwise.py::TestPairwise::test_pairwise_with_self[pairwise_frames7-<lambda>3]
2021-02-02T04:33:27.6936130Z FAILED ../../venv/lib/python3.7/site-packages/pandas/tests/window/test_pairwise.py::TestPairwise::test_no_pairwise_with_self[pairwise_frames1-<lambda>3]
2021-02-02T04:33:27.6937383Z FAILED ../../venv/lib/python3.7/site-packages/pandas/tests/window/test_pairwise.py::TestPairwise::test_no_pairwise_with_self[pairwise_frames2-<lambda>3]
2021-02-02T04:33:27.6938466Z FAILED ../../venv/lib/python3.7/site-packages/pandas/tests/window/test_pairwise.py::TestPairwise::test_no_pairwise_with_self[pairwise_frames3-<lambda>3]
2021-02-02T04:33:27.6939538Z FAILED ../../venv/lib/python3.7/site-packages/pandas/tests/window/test_pairwise.py::TestPairwise::test_no_pairwise_with_self[pairwise_frames5-<lambda>3]
2021-02-02T04:33:27.6940613Z FAILED ../../venv/lib/python3.7/site-packages/pandas/tests/window/test_pairwise.py::TestPairwise::test_no_pairwise_with_self[pairwise_frames6-<lambda>3]
2021-02-02T04:33:27.6941921Z FAILED ../../venv/lib/python3.7/site-packages/pandas/tests/window/test_pairwise.py::TestPairwise::test_no_pairwise_with_self[pairwise_frames7-<lambda>3]
2021-02-02T04:33:27.6943014Z = 11 failed, 137465 passed, 18326 skipped, 965 xfailed, 1 xpassed, 8 warnings in 745.50s (0:12:25) =
```

cc @mroeschke 

test_pairwise_with_self was updated in 1.2. (#36657) I will assume that this will also fail on 1.2.x for now. will open PR to test shortly.

I'll also add blocker for now since if tests fail wheels aren't uploaded.