DM-31824: Use ResourcePath.mtransfer for Butler.transfer_from

[timj]

Checklist

• ran Jenkins
• added a release note for user-visible changes to doc/changes
• (if changing dimensions.yaml) make a copy of dimensions.yaml in configs/old_dimensions

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.36%. Comparing base (31a8d53) to head (202c19e).

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1162   +/-   ##
=======================================
  Coverage   89.36%   89.36%           
=======================================
  Files         367      367           
  Lines       49546    49554    +8     
  Branches     6016     6015    -1     
=======================================
+ Hits        44275    44283    +8     
  Misses       3852     3852           
  Partials     1419     1419           

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