⬆️ Upgrade Django to 4.2

[stevenbal]

#939

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (e2f4b64) 93.07% compared to head (9950ffc) 93.10%.
Report is 2 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #940      +/-   ##
===========================================
+ Coverage    93.07%   93.10%   +0.03%     
===========================================
  Files          828      828              
  Lines        28949    29116     +167     
===========================================
+ Hits         26943    27108     +165     
- Misses        2006     2008       +2     

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[pi-sigma]

Checklist to prepare the Django 4.2 LTS upgrade

3rd party packages to verify/make compatible

• django-admin-index
• django-axes
• django-filer
• django-hijack (not officially supported: link; upgrade to 3.04)
• django-ordered-model (not officially supported, appears to work)
• django-redis (not officially supported; upgrade to 5.4.0)
• django-rosetta
• django-sniplates (not officially supported; upgrade to 0.7.2)
• django-treebeard (not officially supported; upgrade to 4.7)
• maykin-django-two-factor-auth (incompatible, blocking)
• django-localflavor (not officially supported; upgrade to 4.0 (breaking
  changes))
• django-privates
• django-cors-headers (not officially supported; upgrade to 4.3.1 (breaking changes))
• django-autoslug
• django-elasticsearch-dsl
• django-import-export (not officially supported: link; upgrade)
• django-solo
• django-colorfield (upgrade to >=0.9.0)
• django-registration (upgrade to 3.4)
• django-view-breadcrumbs (upgrade to 2.5.1)
• django_better_admin_arrayfield (not officially supported; seems to work, but see link)
• django-timeline-logger (not officially supported; upgrade to 3.0.0 (breaking changes))
• django-csp (not officially supported; seems to work)
• django-csp-reports
• mozilla-django-oidc-db (not officially supported; upgrade to 3.0.0 (breaking changes))
• django-open-forms-client (not officially supported)
• django-htmx (upgrade to 1.17.2)
• django-yubin (not officially supported; upgrade to 2.0.2 (breaking changes))
• django-image-cropping (not officially supported)
• django-log-outgoing-requests

CMS-related packages

• django-cms (not officially supported; upgrade to 4.1.0)
• djangocms-text-ckeditor (upgrade to 5.1.5)
• djangocms-link (not officially supported)
• djangocms-file (not officially supported)
• djangocms-picture (upgrade to 4.1.1)
• aldryn-apphooks-config (upgrade to 0.7)

API packages

• djangorestframework (upgrade to 3.14.0)
• django-extra-fields (deprecated (link); replace with drf-extra-fields)
• django-filter
• drf-spectacular (upgrade to 0.27.0)
• djangorestframework-camel-case

[pi-sigma]

maykin-django-two-factor-auth seems to be the only package incompatible with the upgrade to 4.2. However, we have quite a few packages that don't officially support Django 4.2. Most of them can be upgraded (some with potentially breaking changes).

[alextreme]

Superseded by #1024