Ruff full switch

[ulgens]

I'll be creating smaller PRs for specific rule sets and rebasing this branch.

The goal is to understand/showcase the current state of migration.

Supersedes:

• Replaced flake8/isort with ruff configuration #2499

[codecov-commenter]

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Codecov Report

❌ Patch coverage is 76.63551% with 25 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (main@73769a9). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
aggregator/models.py	25.00%	3 Missing ⚠️
docs/management/commands/build_doc_release.py	0.00%	3 Missing ⚠️
docs/management/commands/update_docs.py	0.00%	3 Missing ⚠️
docs/views.py	75.00%	2 Missing ⚠️
fundraising/admin_views.py	0.00%	2 Missing ⚠️
...es/management/commands/generate_release_roadmap.py	0.00%	2 Missing ⚠️
blog/admin.py	66.66%	1 Missing ⚠️
...cklists/migrations/0005_populate_cvss_v4_fields.py	0.00%	1 Missing ⚠️
dashboard/management/commands/update_metrics.py	0.00%	1 Missing ⚠️
djangoproject/settings/docker.py	0.00%	1 Missing ⚠️
... and 6 more
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Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2781   +/-   ##
=======================================
  Coverage        ?   87.72%           
=======================================
  Files           ?      194           
  Lines           ?     7229           
  Branches        ?      394           
=======================================
  Hits            ?     6342           
  Misses          ?      802           
  Partials        ?       85           

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