[DO NOT MERGE] Test pandas 2.2 release candidate

[jorisvandenbossche]

Similarly as #2727, not to merge, but just to test the pandas release candidate on your CI.

[mwaskom]

Thanks! Looks like one test failure based on a construct used in a test, easy for seaborn to adapt (although the error message is weird as the capitalization in the error message doesn't match what is in the code — maybe double check that's not a pandas bug?)

But also a tremendous amount of FutureWarning for upcoming deprecations that did not go through a DeprecationWarning schedule :/

[jorisvandenbossche]

Looks like one test failure based on a construct used in a test, easy for seaborn to adapt (although the error message is weird as the capitalization in the error message doesn't match what is in the code — maybe double check that's not a pandas bug?)

Yes, that's indeed easy to fix here, and have also already reported that on the pandas side: pandas-dev/pandas#56847 (comment). It was not really documented that those lower case versions also work, but it's probably a bug in the deprecation that those stopped working.

[mwaskom]

Thanks for flagging!