fix: prioritize failures more using a fixed fraction

[beckermr]

Description:

Checklist:

• Pydantic model updated or no update needed

Cross-refs, links to issues, etc:

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.63%. Comparing base (492ded8) to head (776e16c).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4644   +/-   ##
=======================================
  Coverage   80.63%   80.63%           
=======================================
  Files         141      141           
  Lines       16233    16232    -1     
=======================================
  Hits        13089    13089           
+ Misses       3144     3143    -1     

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