BUG: support ambiguous=infer with ZoneInfo
- [x] closes #48442 (Replace xxxx with the GitHub issue number)
- [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [x] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [x] Added [type annotations](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#type-hints) to new arguments/methods/functions.
- [x] Added an entry in the latest `doc/source/whatsnew/vX.X.X.rst` file if fixing a bug or adding a new feature.

Sits on top of #49684
Fixes https://github.com/pandas-dev/pandas/issues/48442? (and therefore this change is/should be considered for backporting) > Fixes https://github.com/pandas-dev/pandas/issues/48442? (and therefore this change is/should be considered for backporting)

yes > do we have testing tz_localize/convert with the nonexistent options?

you mean specific to ZoneInfo?  i dont think so.  would be straightforward to add ZoneInfo case to test_tz_localize_nonexistent since it is currently parametrized over pytz/dateutil > > do we have testing tz_localize/convert with the nonexistent options?
> 
> you mean specific to ZoneInfo? i dont think so. would be straightforward to add ZoneInfo case to test_tz_localize_nonexistent since it is currently parametrized over pytz/dateutil

Correct, yes if these can be added in a follow up that would be good. good call on checking this; ATM this segfaults