TYP: remove mypy ignores from io/formats/printing.py
- [x] Related to https://github.com/pandas-dev/pandas/issues/37715
- [x] [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
- [x] 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.

The [mypy issue](https://github.com/python/mypy/issues/4975) that required this ignore statement has been solved and included in a release.

One of the mypy CI check failed. I cannot reproduce this with mypy version `0.971` which is the version in `environment.yml`. Thanks @Moisan 