BUG: reindex raising TypeError with timezone aware index and tolerance for ffill and bfill
- [x] closes #38566
- [x] tests added / passed
- [x] Ensure all linting tests pass, see [here](https://pandas.pydata.org/pandas-docs/dev/development/contributing.html#code-standards) for how to run them
- [x] whatsnew entry

Is there a better place for these tests?

EDIT: Technically a regression, but since it persists since 1.0.0 is it worth backporting?