remove version.py file and use _version.py

[bnb32]

No description provided.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.36%. Comparing base (ffa0944) to head (4d6f44d).

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #66      +/-   ##
==========================================
- Coverage   88.36%   88.36%   -0.01%     
==========================================
  Files          27       26       -1     
  Lines        3731     3730       -1     
==========================================
- Hits         3297     3296       -1     
  Misses        434      434              

Flag	Coverage Δ
unittests	88.36% <100.00%> (-0.01%)	⬇️

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