Publish docker image to github registry

Author: pepakriz

.github/workflows/release.yml

@@ -20,3 +20,11 @@ jobs:
         uses: helm/[email protected]
         env:
           CR_TOKEN: "${{ secrets.CR_TOKEN }}"
+
+      - name: Publish to Registry
+        uses: elgohr/Publish-Docker-Github-Action@master
+        with:
+          name: pepakriz/gitlab-merger-bot/gitlab-merger-bot
+          registry: docker.pkg.github.com
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}