Dependency updates

[CraZySacX]

• Updated git2-rs to 0.20.0
• Updated gix to 0.69.1
• Various other minor version bumps

Fixes #393

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.54%. Comparing base (38524b0) to head (bbc57f8).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #394      +/-   ##
==========================================
+ Coverage   99.51%   99.54%   +0.02%     
==========================================
  Files          19       19              
  Lines        3721     3721              
==========================================
+ Hits         3703     3704       +1     
+ Misses         18       17       -1     

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