perf: Add first_(true|false)_idx to BooleanChunked and use in bool arg_(min|max)

[orlp]

This should be a lot faster if an array has nulls, or more than 1 chunk.

cc @alexander-beedie

[coastalwhite]

Could you maybe replace the impl of index_of with this? It looks quite similar.

[codecov]

Codecov Report

Attention: Patch coverage is 88.46154% with 6 lines in your changes missing coverage. Please review.

Project coverage is 80.68%. Comparing base (5993d95) to head (be6cfce).
Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/polars-core/src/chunked_array/ops/bits.rs	86.04%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #22907      +/-   ##
==========================================
+ Coverage   80.66%   80.68%   +0.02%     
==========================================
  Files        1672     1672              
  Lines      221997   221916      -81     
  Branches     2798     2798              
==========================================
- Hits       179065   179057       -8     
+ Misses      42265    42193      -72     
+ Partials      667      666       -1     

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[orlp]

@coastalwhite Oh, haha, great minds think alike :)