Auto-update now occurs monthly instead of weekly
Fixes issue #43364

- [x] closes #44364
- [ ] 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

Thanks for the PR. Closing since https://github.com/pandas-dev/pandas/pull/43378 is addressing this. 