Add pre-commit to format chart templates

[eladkal]

Body

spawn out of #30214 (comment)

Recently we had several PRs to format the chart templates:
#30312
#29941
#29917
However we lack a mechanism to validate that new PRs are complying with the needed format
This task is about researching/finding a way to do it with pre-commit

cc @dnskr

Committer

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

[potiuk]

BTW. I could not find a good tool do to such reformatting.

This is as close as I could find for spacing https://github.com/jumanjihouse/pre-commit-hook-yamlfmt but there are more smarts in the manual refactoring.

I think a better solution than reformatting will be flagging bad usages and explaining how to fix them (unless someone would like to add a feature to ruff :) or write an equivalent.