remove gitpython dependency

[szysad]

Before submitting checklist

• Did you update the CHANGELOG? (not for test updates, internal changes/refactors or CI/CD setup)
• Did you ask the docs owner to review all the user-facing changes?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.66%. Comparing base (d000c6c) to head (6bd9423).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1752      +/-   ##
==========================================
- Coverage   75.18%   72.66%   -2.52%     
==========================================
  Files         249      249              
  Lines       13296    13293       -3     
==========================================
- Hits         9996     9660     -336     
- Misses       3300     3633     +333     

Flag	Coverage Δ
e2e	?
e2e-management	?
e2e-s3	?
e2e-s3-gcs	?
e2e-standard	?
macos	72.48% <ø> (-2.60%)	⬇️
py3.10	?
py3.11	?
py3.12	?
py3.7	71.94% <ø> (-2.54%)	⬇️
py3.8	72.48% <ø> (-2.61%)	⬇️
py3.9	?
ubuntu	71.90% <ø> (-3.23%)	⬇️
unit	72.66% <ø> (-0.11%)	⬇️
windows	70.69% <ø> (-3.08%)	⬇️

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