fix: geomdl dependency in conda-forge

[RobPasMue]

Coming from conda-forge/ansys-geometry-core-feedstock#26

We should avoid having it "completely necessary" for conda purposes... Although it can be a pip dependency, let's avoid it in conda

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.36%. Comparing base (32df1cd) to head (47ff5e1).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1900      +/-   ##
==========================================
- Coverage   90.38%   90.36%   -0.02%     
==========================================
  Files         105      108       +3     
  Lines        9330     9385      +55     
==========================================
+ Hits         8433     8481      +48     
- Misses        897      904       +7     

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