Package cleaning errors since golang 1.20

[joshperry]

I guess adding packages to the go clean command always actually cleaned the whole cache, so adding this parameter was made into an error.

cref: golang/go#53725

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.62%. Comparing base (cb40038) to head (911fcf8).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #357   +/-   ##
=======================================
  Coverage   83.62%   83.62%           
=======================================
  Files          14       14           
  Lines        1527     1527           
=======================================
  Hits         1277     1277           
  Misses        184      184           
  Partials       66       66           

Flag	Coverage Δ
unittests	83.62% <ø> (ø)

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[HeavyWombat]

Thanks for catching it.