Add Python 3.12 to test-job matrix

[tobiaslatour]

No description provided.

[github-actions]

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[tobiaslatour]

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[tobiaslatour]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.22%. Comparing base (2333717) to head (5ff0501).
Report is 8 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #30   +/-   ##
=======================================
  Coverage   90.22%   90.22%           
=======================================
  Files           7        7           
  Lines         307      307           
=======================================
  Hits          277      277           
  Misses         30       30           

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