Fix to release action

Author: amancevice

.github/workflows/release.yml

@@ -15,6 +15,8 @@ jobs:
       - run: bundle install --jobs 4 --retry 3
       - run: bundle exec rake build
       - run: |
+          touch ~/.gem/credentials
+          chmod 0600 ~/.gem/credentials
           cat << EOF > ~/.gem/credentials
           ---
           :rubygems_api_key: ${{ secrets.RUBYGEMS_API_KEY }}