Fix file rename handling in git

[prymitive]

No description provided.

[codecov-commenter]

Codecov Report

Merging #116 (a6cd310) into main (1834dbb) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #116      +/-   ##
==========================================
+ Coverage   88.65%   88.67%   +0.02%     
==========================================
  Files          56       56              
  Lines        3498     3505       +7     
==========================================
+ Hits         3101     3108       +7     
  Misses        306      306              
  Partials       91       91              

Impacted Files	Coverage Δ
internal/discovery/git_branch.go	94.44% <100.00%> (+0.82%)	⬆️

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