Make the binary executable and run it with the correct Ruby version in the workflow

Author: rafaelfranca

.github/workflows/publish-new-ruby-versions.yaml

@@ -33,7 +33,7 @@ jobs:
           RUBY_VERSIONS: ${{ github.event.inputs.ruby_versions }}
           IMAGE_VERSIONS: ${{ github.event.inputs.image_versions }}
           REPOSITORY: ${{ github.repository }}
-        run: ruby bin/normalize-publish-inputs
+        run: bin/normalize-publish-inputs
 
   publish:
     name: Publish Images