Django 3.2 upgrade

[marksweb]

This follows on from the django 2.2 upgrade, this time bringing django to 3.2.

[codecov-commenter]

Codecov Report

Merging #667 (9992142) into main (f374491) will increase coverage by 0.29%.
The diff coverage is 71.42%.

@@            Coverage Diff             @@
##             main     #667      +/-   ##
==========================================
+ Coverage   76.98%   77.28%   +0.29%     
==========================================
  Files          88       88              
  Lines        2381     2390       +9     
  Branches      222      225       +3     
==========================================
+ Hits         1833     1847      +14     
+ Misses        496      490       -6     
- Partials       52       53       +1     

Impacted Files	Coverage Δ
applications/views.py	68.38% <ø> (+1.29%)	⬆️
core/forms.py	88.37% <0.00%> (-2.33%)	⬇️
organize/views.py	70.21% <ø> (ø)
applications/admin.py	60.75% <40.00%> (ø)
applications/forms.py	72.83% <75.00%> (-3.71%)	⬇️
djangogirls/settings.py	80.68% <75.00%> (-0.28%)	⬇️
contact/forms.py	95.65% <80.00%> (-4.35%)	⬇️
applications/models.py	92.67% <100.00%> (ø)
coach/models.py	70.37% <100.00%> (ø)
core/templatetags/core_tags.py	60.00% <100.00%> (ø)
... and 5 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update f374491...9992142. Read the comment docs.

[marksweb]

This has been rebased with the translations changes.

[amakarudze]

Hey, @marksweb. Let me know when this is ready for review. I keep seeing more changes to this PR. Or maybe we can wait until the errors brought about by 2.2 are resolved before we can move ahead?

[marksweb]

Hello @amakarudze

This was OK. Looks like coverage wasn't happy. Will see if I can rerun jobs.

All I recently did here was rebase the latest main I think.

[marksweb]

Ah I can see I've ended up with a version of Django countries here that's unsupported. Got old python 2 support refs to six

Will fix ASAP

[amakarudze]

Ok @marksweb. Let me know when it's ready for review. Thanks

[marksweb]

@amakarudze ok checks passing again 👌👍

[amakarudze]

Everything looks good @marksweb. Thanks for all your work.

Just a question on the changed contact URL, why you thought of changing it - no need to change it back, by the way. Also maybe, it's high time we removed Opbeat settings in pytest.ini. See my comments.

[amakarudze]

Had to revert this @marksweb. See Sentry for the issues. Thanks

[amakarudze]

I did run the migrations locally and they worked. We had some unapplied migrations on the server and running python manage.py makemigrations --merge as advised did not work. Had to revert the changes so we can continue serving the website while we figure this out.

[marksweb]

@amakarudze Ok thanks.

There's quite a lot on sentry to investigate. We really need a way to make python anymore more reliable. 😞