fix: auth to gems

Author: sighphyre

.github/workflows/publish.yml

@@ -52,6 +52,9 @@ jobs:
       - name: Build gem
         run: bundle exec rake build
 
+      - name: Configure RubyGems credentials
+        uses: rubygems/configure-rubygems-credentials@main
+
       - name: Publish to RubyGems
         run: gem push "pkg/unleash-openfeature-provider-${{ steps.version.outputs.gem_version }}.gem"