feat: tests of backport prs (#1224)

.github/workflows/ci.yml

@@ -4,7 +4,9 @@ on:
   push:
     branches: [main]
   pull_request:
-    branches: [main]
+    branches:
+      - main
+      - 'v[0-9]+.[0-9]+.x'  # Match version branches like v0.13.x, v1.0.x, etc.
   release:
     types: [created]