Rename to main
- [ ] see #39577
- [ ] tests added / passed
- [ ] Ensure all linting tests pass, see [here](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit) for how to run them
- [ ] whatsnew entry

@mroeschke maybe backport? 1.4 or 1.4.1 @meeseeksdev backport 1.4.x thanks @jarrodmillman  Something went wrong ... Please have a look at my logs.