Update Ubuntu in Github test runners

[antonpirker]

The runner ubuntu-20.04 will be removed on April 1st, 2025.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.50%. Comparing base (3d2f044) to head (a4a01fb).
Report is 1 commits behind head on master.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #4204   +/-   ##
=======================================
  Coverage   79.50%   79.50%           
=======================================
  Files         141      141           
  Lines       15800    15800           
  Branches     2700     2700           
=======================================
  Hits        12561    12561           
  Misses       2378     2378           
  Partials      861      861           

[antonpirker]

Those integration tests (that are more for documentation) are hanging in Python 3.6 when using the Python Docker container. I just deactivated them, because we will remove 3.6 support soon anyhow.

[szokeasaurusrex]

Lgtm! One question though: why are we only using ubuntu-22.04, rather than the more recent ubuntu-24.04?

Also, just for my understanding, what is the purpose of the Docker container for Python 3.6?

[sentrivana]

Thanks for fixing! <3

Echoing Daniel's comment about a newer Ubuntu version -- do we need 22.04 specifically or can we go higher?

[antonpirker]

I tried to upgrade to 24.04 but then we need to use Docker for Python 3.6 and 3.7 (we need docker because Ubuntu does not have the old python installation packages anymore.)
And when switching to 24.04 some other things broke, and after an hour or two trying to fix this I just reverted and made 22.04 work.