Add pre-commit to validate provider __init__ is matching the template

[eladkal]

Body

To avoid issues like: #44017

Some info about templating of __init__
https://github.com/apache/airflow/blob/main/dev/README_RELEASE_PROVIDER_PACKAGES.md#optional-apply-template-updates

The pre commit should fail if someone modify the init to a pattern that doesn't match the template

Committer

• I acknowledge that I am a maintainer/committer of the Apache Airflow project.

[potiuk]

FYI. There is a nice way to create an issue by maintainer - create an item in a project and convert it to the issue - this way you can bypass the meta task template :)

[potiuk]

This will not be needed after #44511 is implemented.