DM-37704: Update code to use resolved refs.

[andy-slac]

All references are now resolved, retiring the code that checked for unresolved refs.

ButlerQuantumContext interface is updated. The constructor now takes a
LimitedButler instance only and factory methods from_full and from_limited are gone.

Checklist

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

[codecov]

Codecov Report

Patch coverage: 86.66% and project coverage change: +0.01 🎉

Comparison is base (807f6e7) 82.56% compared to head (2682e8b) 82.58%.

❗ Current head 2682e8b differs from pull request most recent head dfcc5a2. Consider uploading reports for the commit dfcc5a2 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #338      +/-   ##
==========================================
+ Coverage   82.56%   82.58%   +0.01%     
==========================================
  Files          62       62              
  Lines        6970     6925      -45     
  Branches     1385     1368      -17     
==========================================
- Hits         5755     5719      -36     
+ Misses        934      929       -5     
+ Partials      281      277       -4     

Impacted Files	Coverage Δ
...ython/lsst/pipe/base/script/transfer_from_graph.py	12.50% <ø> (ø)
tests/test_graphBuilder.py	95.58% <ø> (+1.40%)	⬆️
python/lsst/pipe/base/executionButlerBuilder.py	66.21% <60.00%> (+0.44%)	⬆️
python/lsst/pipe/base/butlerQuantumContext.py	79.38% <100.00%> (-1.76%)	⬇️
python/lsst/pipe/base/graphBuilder.py	64.25% <100.00%> (+0.11%)	⬆️
python/lsst/pipe/base/testUtils.py	93.47% <100.00%> (+2.81%)	⬆️
tests/test_pipelineTask.py	97.23% <100.00%> (-0.06%)	⬇️

... and 2 files with indirect coverage changes

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