Generate prediction problems with no entity id

[gsheni]

No description provided.

[codecov]

Codecov Report

Patch coverage: 80.95% and project coverage change: -0.01% ⚠️

Comparison is base (8d13050) 89.48% compared to head (7efcb5d) 89.47%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #116      +/-   ##
==========================================
- Coverage   89.48%   89.47%   -0.01%     
==========================================
  Files          26       26              
  Lines         894      903       +9     
==========================================
+ Hits          800      808       +8     
- Misses         94       95       +1     

Files Changed	Coverage Δ
trane/core/prediction_problem.py	79.41% <72.72%> (+0.24%)	⬆️
trane/core/prediction_problem_generator.py	92.39% <90.00%> (+0.25%)	⬆️

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