Update various dependencies

[reupen]

Description of change

Updates various dependencies. Change logs:

• https://docs.pytest.org/en/latest/changelog.html
• https://pytest-django.readthedocs.io/en/latest/changelog.html
• https://elasticsearch-dsl.readthedocs.io/en/latest/Changelog.html
• http://whitenoise.evans.io/en/stable/changelog.html (no change log for 4.1.2 given there currently – the commits for 4.1.2 are here)
• https://github.com/niwinz/django-redis/blob/master/CHANGES.txt
• https://github.com/andymccurdy/redis-py/blob/master/CHANGES (indirect dependency)
• https://github.com/django-extensions/django-extensions/blob/master/CHANGELOG.md

Checklist

• Has a new newsfragment been created? Check changelog/README.rst for instructions
• Have any relevant search models been updated?
• Have any relevant fixtures (fixtures/test_data.yaml) been updated?
• Have any relevant select-/prefetch-related field lists in the views and search apps been updated?
• Has the admin site been updated (for new models, fields etc.)?
• Has the README been updated (if needed)?

[codecov]

Codecov Report

Merging #1251 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           develop   #1251   +/-   ##
=======================================
  Coverage     96.7%   96.7%           
=======================================
  Files          239     239           
  Lines         6928    6928           
  Branches       652     652           
=======================================
  Hits          6700    6700           
  Misses         157     157           
  Partials        71      71

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[marcofucci]

This was causing some problems on Export Wins Data, see https://github.com/uktrade/export-wins-data/pull/730

[reupen]

django-redis 4.10.0 supports redis-py 3.0 (and we aren't using redis-py-cluster here) – we could deploy to UAT or somewhere else first to make sure thing still work though

[reupen]

Never mind, kombu has problems with the new redis client as well: celery/kombu#947

I'll keep redis at 2.10.6 and django-redis at 4.9.1.