fixup! Add GitHub Actions badge for CI workflow (#661)

Author: ctran

.github/workflows/release.yml

@@ -32,5 +32,5 @@ jobs:
           gem build *.gemspec
           gem push --KEY github --host https://rubygems.pkg.github.com/${OWNER} *.gem
         env:
-          GEM_HOST_API_KEY: ${{secrets.GPR_AUTH_TOKEN}}
+          GEM_HOST_API_KEY: ${{ secrets.GPR_AUTH_TOKEN }}
           OWNER: ctran