add sync pr

.github/workflows/rs-release.yml

@@ -194,6 +194,19 @@ jobs:
           git tag -a "$R_TAG" -m "Release v${{ needs.prepare.outputs.r_version }}"
           git push origin "$R_TAG"
 
+      - name: Create Sync PR
+        run: |
+          curl -X POST \
+            -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
+            -H "Accept: application/vnd.github.v3+json" \
+            https://api.github.com/repos/${{ github.repository }}/pulls \
+            -d '{
+              "title": "chore: sync release v${{ needs.prepare.outputs.r_version }} to main",
+              "head": "${{ needs.prepare.outputs.rc_branch }}",
+              "base": "main",
+              "body": "This PR was created by GitHub Actions"
+            }'
+
       - name: Create Draft Release
         uses: softprops/action-gh-release@v2
         with: