fix: Allow search_sorted on boolean series

[orlp]

Fixes #16943.
Fixes #16476.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 18 lines in your changes missing coverage. Please review.

Project coverage is 79.80%. Comparing base (19a30ed) to head (62239a9).
Report is 5 commits behind head on main.

Files	Patch %	Lines
crates/polars-ops/src/series/ops/search_sorted.rs	0.00%	18 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #18387      +/-   ##
==========================================
- Coverage   79.84%   79.80%   -0.04%     
==========================================
  Files        1496     1497       +1     
  Lines      200338   200397      +59     
  Branches     2841     2841              
==========================================
- Hits       159951   159926      -25     
- Misses      39862    39946      +84     
  Partials      525      525              

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