Add support for Python 3.12 & Django 5.2

[irtazaakram]

• resolves Drop Python 3.8 & Add Support for Python 3.12 #526
• resolves Add Django 5.2 support to edx-val #575

Major Change: openedx/public-engineering#340

[codecov]

Codecov Report

Attention: Patch coverage is 96.29630% with 2 lines in your changes missing coverage. Please review.

Project coverage is 94.81%. Comparing base (eabb63a) to head (6800b99).
Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
edxval/tests/test_storages.py	95.23%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #577      +/-   ##
==========================================
+ Coverage   94.67%   94.81%   +0.13%     
==========================================
  Files          32       33       +1     
  Lines        3269     3315      +46     
  Branches      126      127       +1     
==========================================
+ Hits         3095     3143      +48     
+ Misses        156      154       -2     
  Partials       18       18              

Flag	Coverage Δ
unittests	94.81% <96.29%> (+0.13%)	⬆️

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[awais786]

This change will affect the edx-platform, so we need to test this PR there as well before merging.

[awais786]

This change will take effect immediately after the merge.

[irtazaakram]

Created a PR here openedx/openedx-platform#36658 to test it in edx-platform.

[feanil]

Looks like you might need to rebuild the pact tests?

[awais786]

@irtazaakram, since you're creating the PR from a fork, the Pact test is failing. Good to go.