Ci mainenance

[jcapriot]

Updates for numpy 2.0 and general CI maintenance.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 0.00%. Comparing base (e8dc9eb) to head (57b76be).
Report is 15 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #74       +/-   ##
==========================================
- Coverage   87.45%   0.00%   -87.46%     
==========================================
  Files          30      30               
  Lines        3078    3079        +1     
==========================================
- Hits         2692       0     -2692     
- Misses        386    3079     +2693     

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[jcapriot]

Coverage is at 0% due to having to actually install it using pip in a non-editable mode.

This is because no release of discretize is currently built against numpy 2.0 on conda-forge (which this now requires). Looking at how discretize is used here, it should be simple enough to remove it from most testing requirements, and make it optional for those others.