Add Django 5.1 support to your favourite package

[adamchainz]

Pick a Django-related package that you enjoy using and check if it supports Django 5.1. If not, try to add it! Investigate its testing setup and any past new-Django-version PRs for inspiration.

Things to check for:

• Tested versions, often in tox.ini or noxfile.py.
• Packaging metadata about supported versions, often in pyproject.toml or setup.cfg.
• Documented supported versions, often in README or install guide.

Some example PRs:

• https://github.com/adamchainz/django-htmx/pull/451/files
• Add Django 5.1 to the CI matrix django-commons/django-debug-toolbar#1995