This reverts commit 6508db2f.

Refs #23088.

Thanks django at patrickbregman.eu for the report.

Thanks Baptiste Mispelon for the suggestion.

If auto_now or auto_now_add was used then the serialized
field in the migration contained unnecessary `editable` and
`blank` arguments.

Thanks frewsxcv for the report.

Thanks veena for the suggestion and Simon Charette and Kévin Etienne for reviews.

Thanks Claude Paroz for the review.

Thanks Jeremy Dunck for the suggestion and Nick Sanford for review.

https://groups.google.com/d/msg/django-developers/8b-wxEzWO3c/Hx3Uqg9XrksJ

Some cultures can't handle these words.

Most of these changes are about using the correct vocabulary -- "core
team member" vs "core developer/committer" and adding internal links.

As the core team grows towards 50 people, it isn't reasonable to give
everyone veto rights anymore.

Extended the scope of the core team a bit (depending on your current
perspective on that scope).

Thanks Kronuz for the suggestion.

Thanks Mattias Lindvall for the report and inital patch.

Thanks Hiroki Kiyohara and Tim Graham for the reviews.

Fixed #22956 -- Made PermissionManager.get_by_natural_key() use the correct database for content type lookup.

Thanks James Cleveland for the report and Aymeric for suggesting
the solution.

Thanks maraujop for the report and Hiroki and Tim Graham for review.

Thanks DrMeers for the suggestion.

os.close(fd) is needed to avoid "The process cannot access the file
because it is being used by another process"