Add sanitize to score_genes

[flying-sheep]

• Closes #
• Tests included or not required because:

• Release notes not necessary because:

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.97%. Comparing base (d998742) to head (d09d0d1).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3262      +/-   ##
==========================================
+ Coverage   76.96%   76.97%   +0.01%     
==========================================
  Files         109      109              
  Lines       12469    12475       +6     
==========================================
+ Hits         9597     9603       +6     
  Misses       2872     2872              

Flag	Coverage Δ
	76.97% <100.00%> (+0.01%)	⬆️

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Files with missing lines	Coverage Δ
src/scanpy/tools/_score_genes.py	86.91% <100.00%> (+0.77%)	⬆️