Speed up semver-checks CI job

[JSorngard]

Same as in JSorngard/lambert_w#78.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.80%. Comparing base (5630884) to head (193ade2).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #119   +/-   ##
=======================================
  Coverage   89.80%   89.80%           
=======================================
  Files          11       11           
  Lines         991      991           
=======================================
  Hits          890      890           
  Misses        101      101           

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