DM-43484: Add simulated OOM errors to PipelineTask mocks

[TallJimbo]

Checklist

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

[codecov]

Codecov Report

Attention: Patch coverage is 44.00000% with 14 lines in your changes are missing coverage. Please review.

Project coverage is 82.38%. Comparing base (cf2952e) to head (660581d).

Files	Patch %	Lines
...ython/lsst/pipe/base/tests/mocks/_pipeline_task.py	44.00%	14 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #408      +/-   ##
==========================================
- Coverage   82.38%   82.38%   -0.01%     
==========================================
  Files          93       93              
  Lines       10647    10661      +14     
  Branches     2020     2022       +2     
==========================================
+ Hits         8772     8783      +11     
- Misses       1520     1523       +3     
  Partials      355      355              

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[MichelleGower]

Looks good. Shouldn't there be a doc/changes file? Merge approved

[TallJimbo]

I was thinking of the bugfix in ctrl_mpexec as the only "user-visible change" but upon further reflecting a changelog entry for the changes here wouldn't hurt.