[chore] Fix typo in test file names

[crobert-1]

Description:

histrograms -> histograms

[Copilot]

Pull Request Overview

This PR fixes a typo in test file names where "histrograms" was misspelled as "histrograms" in file path references.

• Corrected spelling of "histrograms" in test file path strings
• Updated all test case file references to use the correct spelling

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 43.43%. Comparing base (15602fb) to head (3d26b50).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6838      +/-   ##
==========================================
+ Coverage   43.35%   43.43%   +0.07%     
==========================================
  Files         370      370              
  Lines       26104    26104              
==========================================
+ Hits        11317    11337      +20     
+ Misses      13963    13947      -16     
+ Partials      824      820       -4     

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