CI: ignore warnings from pandas-nightly

[twoertwein]

closes #666

pytest_warns_bounded becomes unused with this PR

[Dr-Irv]

OK, I tried this and it worked, so let's use this going forward. Can you convert it from Draft?

[twoertwein]

Could also remove pytest_warns_bounded?

Unrelated: could replace flake8 & flake8-pyi & pyupgrade with ruff, would speed up pre-commit and pandas did the same. Could also replace isort (pandas didn't do that as ruff doesn't support cython).

[Dr-Irv]

thanks @twoertwein

[Dr-Irv]

Could also remove pytest_warns_bounded?

We might need it if there are deprecation warnings in a current release that we are willing to tolerate.

Unrelated: could replace flake8 & flake8-pyi & pyupgrade with ruff, would speed up pre-commit and pandas did the same. Could also replace isort (pandas didn't do that as ruff doesn't support cython).

I'm not familiar with ruff, but would like to keep isort. Open to having you do a PR.