DOC: Enforce Numpy Docstring Validation for DataFrame 
- [ ] xref #58065

Fixed SA01 issues for the following methods:

`pandas.DataFrame.mean`
`pandas.DataFrame.median`
`pandas.DataFrame.plot`
`pandas.DataFrame.pop`
`pandas.Series.mean`
`pandas.Series.median`
`pandas.Series.plot`
`pandas.core.groupby.DataFrameGroupBy.plot`
`pandas.core.groupby.SeriesGroupBy.plot`

Fixed functions also removed from code_checks.sh
Hii, I'm not sure why I'm getting this error, even though I added the See Also section
`pandas.DataFrame.mean:See Also section not found`
`pandas.DataFrame.median:See Also section not found` LGTM. merge conflicts need to be resolved.  This pull request is stale because it has been open for thirty days with no activity. Please [update](https://pandas.pydata.org/pandas-docs/stable/development/contributing.html#updating-your-pull-request) and respond to this comment if you're still interested in working on this. Thanks for the pull request, but it appears to have gone stale. If interested in continuing, please merge in the main branch, address any review comments and/or failing tests, and we can reopen.