perf: Reduce per-entry Python overhead in add_entry

[Stranger6667]

No description provided.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.87%. Comparing base (76800e2) to head (674a9f4).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #99      +/-   ##
==========================================
- Coverage   97.91%   97.87%   -0.04%     
==========================================
  Files           3        3              
  Lines         288      283       -5     
  Branches       58       58              
==========================================
- Hits          282      277       -5     
  Misses          4        4              
  Partials        2        2              

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[codspeed-hq]

Merging this PR will not alter performance

🎉 Hooray! pytest-codspeed just leveled up to 5.0.3!

A heads-up, this is a breaking change and it might affect your current performance baseline a bit. But here's the exciting part - it's packed with new, cool features and promises improved result stability 🥳!
Curious about what's new? Visit our releases page to delve into all the awesome details about this new version.

✅ 1 untouched benchmark

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_{Comparing perf/har-writing (674a9f4) with main (76800e2)}