github: update openring workflow to use pull requests

Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>

.github/workflows/update_openring.yml

@@ -26,8 +26,20 @@ jobs:
           git config user.name "GitHub Actions"
           git config user.email noreply@github.com
 
+      - name: Compare changes
+        run: if [[ $(git diff --stat) != '' ]]; then echo "::set-env name=UPDATED::true"; fi
+
       - name: Commit and push changes
         run: |
           git add layouts/partials/openring.html
           git commit --message "layouts: update openring"
-          git push origin src
+
+      - name: Create update PR
+        uses: thomaseizinger/create-pull-request@1.0.0
+        if: env.UPDATED == 'true'
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          head: bot/update-openring
+          base: src
+          title: 'openring sync'
+          body: 'Re-run openring update script'