Update HTTPS test endpoint.

[davidlehn]

api.github.com was immediately rate limited in workflow tests.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.09%. Comparing base (a839812) to head (5029630).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #48   +/-   ##
=======================================
  Coverage   94.09%   94.09%           
=======================================
  Files           4        4           
  Lines         237      237           
=======================================
  Hits          223      223           
  Misses         14       14           

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