Update categorical labels for FixedCombinations

[gsheni]

• Resolve FixedCombinations should create columns with easy-to-understand names & values #2865
• CU-86b99rbyj

[codecov]

Codecov Report

❌ Patch coverage is 78.57143% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 98.03%. Comparing base (8892d29) to head (abf32ab).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
sdv/cag/fixed_combinations.py	78.57%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2864      +/-   ##
==========================================
- Coverage   98.06%   98.03%   -0.04%     
==========================================
  Files          73       73              
  Lines        8327     8331       +4     
==========================================
+ Hits         8166     8167       +1     
- Misses        161      164       +3     

Flag	Coverage Δ
integration	75.74% <78.57%> (-0.03%)	⬇️
unit	97.04% <78.57%> (-0.04%)	⬇️

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[fealho]

Could you add the regression test from the issue?

[gsheni]

@fealho it's a bit hard to add an integration test since it relies on ForeignToPrimaryKeySubset which is in SDV-Enterprise. I added a unit test that check the naming with a similar dataset as the issue (test_naming_of_columns_with_fixed_combinations: 274f748)

[sdv-team]

Task linked: CU-86b99rbyj SDV - FixedCombinations should create columns with easy-to-understand names & values #2865