DM-40303: Minor clean ups for pydantic v2

[timj]

Checklist

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

[codecov]

Codecov Report

Patch coverage: 71.05% and project coverage change: +0.05% 🎉

Comparison is base (7c1dbd7) 85.35% compared to head (2e6c9e3) 85.40%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #255      +/-   ##
==========================================
+ Coverage   85.35%   85.40%   +0.05%     
==========================================
  Files          47       47              
  Lines        4260     4262       +2     
  Branches      735      744       +9     
==========================================
+ Hits         3636     3640       +4     
+ Misses        468      465       -3     
- Partials      156      157       +1     

Files Changed	Coverage Δ
python/lsst/ctrl/mpexec/cli/opt/options.py	87.32% <ø> (ø)
python/lsst/ctrl/mpexec/mpGraphExecutor.py	85.99% <0.00%> (ø)
python/lsst/ctrl/mpexec/showInfo.py	74.73% <0.00%> (ø)
python/lsst/ctrl/mpexec/cmdLineFwk.py	63.01% <66.66%> (+0.44%)	⬆️
python/lsst/ctrl/mpexec/reports.py	91.42% <66.66%> (-5.45%)	⬇️
python/lsst/ctrl/mpexec/cli/utils.py	93.87% <100.00%> (+3.87%)	⬆️
python/lsst/ctrl/mpexec/execFixupDataId.py	90.24% <100.00%> (ø)
python/lsst/ctrl/mpexec/log_capture.py	75.00% <100.00%> (+1.66%)	⬆️
tests/test_cmdLineFwk.py	98.34% <100.00%> (ø)
tests/test_reports.py	100.00% <100.00%> (ø)

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[andy-slac]

Looks good.