CI: Use tests-on-pr.yml from skpkg 0.3.0 and pip installing gooey

[cadenmyers13]

closes #135

[cadenmyers13]

@sbillinge ready for review.

I generated this with package update and there is no python_version like mentioned here #135 (comment)

[sbillinge]

That's the way to do it! 🥇

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.13%. Comparing base (d016b99) to head (24c43cb).
⚠️ Report is 7 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #217   +/-   ##
=======================================
  Coverage   99.13%   99.13%           
=======================================
  Files           5        5           
  Lines         345      345           
=======================================
  Hits          342      342           
  Misses          3        3           

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