add database to ModelNodeArgs in partial parsing test to better reflect prod use cases

[MichelleArk]

database on ModelNodeArgs is optional to mirror the manifest schema, but in practice this is rarely the case.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.90%. Comparing base (71a93b0) to head (be8d78b).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #11330      +/-   ##
==========================================
- Coverage   88.97%   88.90%   -0.08%     
==========================================
  Files         189      189              
  Lines       24182    24182              
==========================================
- Hits        21515    21498      -17     
- Misses       2667     2684      +17     

Flag	Coverage Δ
integration	86.13% <ø> (-0.15%)	⬇️
unit	62.55% <ø> (ø)

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Components	Coverage Δ
Unit Tests	62.55% <ø> (ø)
Integration Tests	86.13% <ø> (-0.15%)	⬇️