improve benchmark run reporting

[gipert]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 6.06061% with 31 lines in your changes missing coverage. Please review.
✅ Project coverage is 60.36%. Comparing base (a6ac35d) to head (2a43b87).
⚠️ Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
...src/legendsimflow/scripts/print_benchmark_stats.py	0.00%	31 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #41      +/-   ##
==========================================
- Coverage   61.21%   60.36%   -0.86%     
==========================================
  Files          18       18              
  Lines        1034     1047      +13     
==========================================
- Hits          633      632       -1     
- Misses        401      415      +14     

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