fix(bench): pass stride in bytes

[FreezyLemon]

Used to be stride in pixels which is old API

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.42%. Comparing base (2d84afd) to head (07e251d).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #46      +/-   ##
==========================================
+ Coverage   97.48%   98.42%   +0.94%     
==========================================
  Files           3        3              
  Lines         318      318              
==========================================
+ Hits          310      313       +3     
+ Misses          8        5       -3     

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[shssoichiro]

Thanks!