SP-2103: add use_local_butler to ctrl_mpexec

[ameisner]

still in progress (marked as draft)

Checklist

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

[codecov]

Codecov Report

Attention: Patch coverage is 12.50000% with 21 lines in your changes missing coverage. Please review.

Project coverage is 90.08%. Comparing base (ef4e5e1) to head (ed9d18d).

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...ython/lsst/ctrl/mpexec/simple_pipeline_executor.py	12.50%	19 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #335      +/-   ##
==========================================
- Coverage   90.48%   90.08%   -0.40%     
==========================================
  Files          51       51              
  Lines        4748     4772      +24     
  Branches      415      422       +7     
==========================================
+ Hits         4296     4299       +3     
- Misses        327      346      +19     
- Partials      125      127       +2     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.