COMPAT: matplotlib 3.4.0
- [ ] closes #40714
- [ ] tests added / passed
- [ ] Ensure all linting tests pass, see [here](https://pandas.pydata.org/pandas-docs/dev/development/contributing.html#code-standards) for how to run them
- [ ] whatsnew entry

marking this for backport as well. @jbrockmendel ping when ready . im kinda burned out on fixing-the-ci; can someone else pick up the baton on this? > im kinda burned out on fixing-the-ci; can someone else pick up the baton on this?

I could pick this up sometime later today ping @pandas-dev/pandas-core for merge. Thanks everyone! thanks all! @meeseeksdev backport 1.2.x Hi, I just ran into this issue when running my matplotlib project based on pandas-input. Thanks for working on it. Please note, that matplotlib is now at 3.4.1 (3.4.0 was quickly superseded).

Hth,
Rob