BUG: unnecessary FutureWarning in sort_values
- [x] closes #45618
- [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

hmm failing tests though > hmm failing tests though

yah places where we are testing for futurewarning and no longer getting them.  will update. > yah places where we are testing for futurewarning and no longer getting them. will update.

updated + greenishx @meeseeksdev backport 1.4.x Something went wrong ... Please have a look at my logs.