DM-37703: Catch unresolved refs warnings and some workarounds

[timj]

Relies on lsst/daf_butler#821

Checklist

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

[codecov]

Codecov Report

Patch coverage: 84.84% and project coverage change: -0.02 ⚠️

Comparison is base (110985a) 80.62% compared to head (c10504d) 80.60%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #319      +/-   ##
==========================================
- Coverage   80.62%   80.60%   -0.02%     
==========================================
  Files          57       57              
  Lines        6414     6450      +36     
  Branches     1308     1219      -89     
==========================================
+ Hits         5171     5199      +28     
- Misses        995     1002       +7     
- Partials      248      249       +1     

Impacted Files	Coverage Δ
python/lsst/pipe/base/butlerQuantumContext.py	78.37% <40.00%> (-1.26%)	⬇️
python/lsst/pipe/base/graphBuilder.py	64.66% <62.50%> (-0.03%)	⬇️
...thon/lsst/pipe/base/graph/_versionDeserializers.py	65.64% <92.85%> (+0.66%)	⬆️
python/lsst/pipe/base/graph/quantumNode.py	89.83% <100.00%> (+0.54%)	⬆️
python/lsst/pipe/base/testUtils.py	92.51% <100.00%> (+0.15%)	⬆️
tests/test_pipelineTask.py	97.36% <100.00%> (+0.02%)	⬆️
tests/test_quantumGraph.py	96.88% <100.00%> (-0.56%)	⬇️

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[andy-slac]

Looks good.