DM-35579: Update import pointer in docs for pipelines_check

[leeskelvin]

Checklist

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

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (2915df5) 85.57% compared to head (bc29145) 85.57%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #249   +/-   ##
=======================================
  Coverage   85.57%   85.57%           
=======================================
  Files          47       47           
  Lines        4251     4251           
  Branches      732      732           
=======================================
  Hits         3638     3638           
  Misses        459      459           
  Partials      154      154           

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[leeskelvin]

At the advice of @timj, I've also pinned pydantic < 2 on this ticket. This is to prevent a new failure that crops up with the release of pydantic 2. For more information, see DM-39876.