Create pre-commit check for all @internal_api methods to be present in METHODS_MAP

[mhenc]

As mentioned in
https://github.com/apache/airflow/pull/27892/files#r1040942701

[jscheffl]

I would re-open here as I assume the bugfix/pytest was only covering 50% of the job.

[potiuk]

Yep. Not closed yet :)