CI minimum mpl version everywhere
- [ ] closes #50202  (Replace xxxx with the GitHub issue number)
- [ ] [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
- [ ] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [ ] Added [type annotations](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#type-hints) to new arguments/methods/functions.
- [ ] Added an entry in the latest `doc/source/whatsnew/vX.X.X.rst` file if fixing a bug or adding a new feature.

thx @MarcoGorelli  @MarcoGorelli could you look into 1.5.x? We get failures there as well but will need a different min version probably 🤔 don't know, the minimum version is set to 3.3.2 in that branch, and that's exactly what CI is pulling in. will investigate @meeseeks-dev backport to 1.5.x @meeseeksdev backport to 1.5.x