BUG: pytz.AmbiguousTimeError not caught in hypothesis test test_on_offset_implementations (GH41906)
- [x] closes #41906
- [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
- [ ] whatsnew entry: let me know if needed
