Update GH action location

[danlamanna]

@annehaley Mind merging this? The GH action now lives at https://github.com/girder/create-pip-index-action.

[codecov[bot]]

Codecov Report

Merging #50 (078e7f3) into main (50cf80f) will decrease coverage by 27.99%. The diff coverage is n/a.

@@             Coverage Diff             @@
##             main      #50       +/-   ##
===========================================
- Coverage   95.58%   67.59%   -27.99%     
===========================================
  Files          16       16               
  Lines         679      679               
===========================================
- Hits          649      459      -190     
- Misses         30      220      +190     

[annehaley]

@danlamanna Did you mean to delete your fork? This change has not been merged.