DM-38307: Enable simpler yaml when no output collection.

[MichelleGower]

Checklist

• ran Jenkins
• added a release note for user-visible changes to doc/changes

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -0.07 ⚠️

Comparison is base (5f1f637) 28.66% compared to head (fe2d0b7) 28.60%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #45      +/-   ##
==========================================
- Coverage   28.66%   28.60%   -0.07%     
==========================================
  Files          10       10              
  Lines         457      458       +1     
  Branches       81       81              
==========================================
  Hits          131      131              
- Misses        323      324       +1     
  Partials        3        3              

Impacted Files	Coverage Δ
python/lsst/ctrl/bps/panda/utils.py	14.37% <0.00%> (-0.09%)	⬇️

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