BUG: is_bool_dtype raises AttributeError when checking categorical Series
- [X] closes #45615
- [X] tests added / passed
- [X] Ensure all linting tests pass, see [here](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit) for how to run them
- [X] whatsnew entry

Could you merge master? also pls merge master thanks @Robbie-Palmer  @meeseeksdev backport 1.4.x Something went wrong ... Please have a look at my logs.