feat(ci): add current django and python to test

[Rotzbua]

• Django 4.0 EOL since 01 Apr 2023.
• Django 4.1 EOL since 01 Dec 2023.
• 4.2 is new LTS.
• 5.0 is new current.

https://endoflife.date/django

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (ffd9171) 91.70% compared to head (18b4775) 91.70%.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #321   +/-   ##
========================================
  Coverage    91.70%   91.70%           
========================================
  Files            9        9           
  Lines          229      229           
  Branches        35       35           
========================================
  Hits           210      210           
  Misses          16       16           
  Partials         3        3           

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[dekkers]

We should probably also remove Python 3.6 and 3.7 as they are also end of life.

[Rotzbua]

@dekkers Yes I agree, but I think the policy of jazzband was to keep support for LTS django version and the supported python versions?