DM-42954: Special-case component dataset types in execution reports.

[timj]

Checklist

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

[codecov]

Codecov Report

Attention: Patch coverage is 25.00000% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 82.42%. Comparing base (4b2da7a) to head (1a20438).

Files	Patch %	Lines
python/lsst/pipe/base/execution_reports.py	25.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #404      +/-   ##
==========================================
- Coverage   82.52%   82.42%   -0.10%     
==========================================
  Files          91       91              
  Lines       10498    10501       +3     
  Branches     1987     1989       +2     
==========================================
- Hits         8663     8655       -8     
- Misses       1484     1491       +7     
- Partials      351      355       +4     

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[eigerx]

Works well on the same graph that had errors previously. Let me know if I can supply any more test cases.