Increase ruff's target python version to 3.12

[wlav]

Increase ruff's target python version to 3.12. The default is 3.10, but out minimum required Python version (in spack etc.) is 3.12. This simplifies code development by allowing 3.12 language constructs.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

❌ Your project status has failed because the head coverage (76.33%) is below the target coverage (80.00%). You can increase the head coverage or adjust the target coverage.

@@            Coverage Diff             @@
##             main     #247      +/-   ##
==========================================
+ Coverage   76.25%   76.33%   +0.07%     
==========================================
  Files         124      124              
  Lines        2733     2725       -8     
  Branches      475      475              
==========================================
- Hits         2084     2080       -4     
+ Misses        452      447       -5     
- Partials      197      198       +1     

Flag	Coverage Δ
unittests	76.33% <ø> (+0.07%)	⬆️

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[greenc-FNAL]

FYI: it's more straightforward to add target-version to pyproject.toml

[wlav]

FYI: it's more straightforward to add target-version to pyproject.toml

Found it, and it says 3.10 indeed. :) But it also affects the python files in the test directory which aren't part of any project.

[greenc-FNAL]

FYI: it's more straightforward to add target-version to pyproject.toml

Found it, and it says 3.10 indeed. :) But it also affects the python files in the test directory which aren't part of any project.

ruff uses pyproject.toml as an .rc file it seems, independent of any other use of said file.

[wlav]

I started over. :) Let's try this one simple change and see how that goes.