feat: Log commit sha

[robinholzi]

Motivation

To be able to link a pipeline rune with the code that has executed it, we want to log the git sha of the last commit in the pipeline logfile.

[MaxiBoether]

n🍨

[codecov]

Codecov Report

Attention: Patch coverage is 41.66667% with 7 lines in your changes missing coverage. Please review.

Project coverage is 82.29%. Comparing base (beb3769) to head (f12a451).

Files	Patch %	Lines
...yn/supervisor/internal/pipeline_executor/models.py	33.33%	4 Missing ⚠️
modyn/supervisor/internal/utils/git_utils.py	50.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #537      +/-   ##
==========================================
- Coverage   82.34%   82.29%   -0.05%     
==========================================
  Files         216      217       +1     
  Lines       10085    10097      +12     
==========================================
+ Hits         8304     8309       +5     
- Misses       1781     1788       +7     

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[github-actions]

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