Fixed beta derivative conversion

[sseraj]

Purpose

As mentioned in #208, the beta derivatives need to be converted from 1/radians to 1/degrees in the same way as the alpha derivatives.

I also updated the beta derivative reference values in the adjoint tests. I trained the tests on the u20-gcc-ompi-latest image.

Expected time until merged

Ideally by the end of the day

Type of change

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (non-backwards-compatible fix or feature)
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Documentation update
• Maintenance update
• Other (please describe)

Testing

Checklist

• I have run flake8 and black to make sure the code adheres to PEP-8 and is consistently formatted
• I have run unit and regression tests which pass locally with my changes
• I have added new tests that prove my fix is effective or that my feature works
• I have added necessary documentation

[sseraj]

Actually, I also need to retrain the functionals tests

[codecov]

Codecov Report

Merging #209 (2bd961c) into main (196caaa) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #209      +/-   ##
==========================================
- Coverage   43.33%   43.32%   -0.02%     
==========================================
  Files          15       15              
  Lines        3551     3550       -1     
==========================================
- Hits         1539     1538       -1     
  Misses       2012     2012              

Impacted Files	Coverage Δ
adflow/pyADflow.py	67.45% <100.00%> (-0.02%)	⬇️

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