[pdata/pprofile] fix off-by one Dictionary issue

[florianl]

Description

Fix off-by-one issue in dictionary lookups.

Link to tracking issue

Fixes #

Testing

Documentation

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.83%. Comparing base (b6dccff) to head (a4cbe78).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #14534      +/-   ##
==========================================
- Coverage   91.86%   91.83%   -0.04%     
==========================================
  Files         677      677              
  Lines       42724    42724              
==========================================
- Hits        39247    39234      -13     
- Misses       2424     2433       +9     
- Partials     1053     1057       +4     

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[codspeed-hq]

CodSpeed Performance Report

Merging this PR will not alter performance

_{Comparing florianl:pprofile-off-by-one (a4cbe78) with main (b6dccff)}

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

Summary

✅ 61 untouched benchmarks
⏩ 20 skipped benchmarks¹

Footnotes

1. 20 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩