Add RUF, NPY and several other linting rules

[henrikjacobsenfys]

No functional changes, just improving the code bit by bit

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.86%. Comparing base (4acf563) to head (c0e05d0).
⚠️ Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #155      +/-   ##
===========================================
+ Coverage    97.82%   97.86%   +0.03%     
===========================================
  Files           42       42              
  Lines         2617     2617              
  Branches       454      453       -1     
===========================================
+ Hits          2560     2561       +1     
+ Misses          34       33       -1     
  Partials        23       23              

Flag	Coverage Δ
integration	48.87% <92.85%> (+0.03%)	⬆️
unittests	97.86% <100.00%> (+0.03%)	⬆️

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