build: add maintenance branches

Author: devpow112

.github/workflows/release.yml

@@ -5,7 +5,10 @@ on:
   workflow_run:
     workflows: CI
     types: completed
-    branches: main
+    branches:
+      - main
+      - '[0-9]+.x'
+      - '[0-9]+.[0-9]+.x'
 permissions:
   contents: read
 concurrency: release