Enhance bitset indices performance

[muendlein]

• issues: fixes Enhance performance of _paint in glyph_renderer #14427
• tests added / passed

[codecov]

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All modified and coverable lines are covered by tests ✅

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Additional details and impacted files

@@              Coverage Diff              @@
##             branch-3.8   #14428   +/-   ##
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  Coverage              ?   93.22%           
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  Files                 ?      284           
  Lines                 ?    20172           
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  Hits                  ?    18805           
  Misses                ?     1367           
  Partials              ?        0           

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[muendlein]

@mattpap Let me know if you think additional tests are necessary.

[mattpap]

Let me know if you think additional tests are necessary.

I would just remove [... ] from ones() and zeros() tests, to assert that they return arrays now.

[github-actions]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.