DM-35692: unpin pip

[mwittgen]

Checklist

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

[codecov]

Codecov Report

Base: 92.11% // Head: 92.11% // No change to project coverage 👍

Coverage data is based on head (434d03b) compared to base (930e510).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #142   +/-   ##
=======================================
  Coverage   92.11%   92.11%           
=======================================
  Files          44       44           
  Lines        2725     2725           
=======================================
  Hits         2510     2510           
  Misses        215      215           

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