ci(release): auto-release vscode-ext on stable push

Author: caio-pizzol

.github/workflows/release-vscode-ext.yml

@@ -1,10 +1,11 @@
-# Auto-releases on push to main (@next channel)
-# For stable (@latest): cherry-pick commits to stable branch, then manually dispatch this workflow
+# Auto-releases on push to main (@next) or stable (@latest)
 name: 📦 Release vscode-ext
 
 on:
   push:
-    branches: main
+    branches:
+      - main
+      - stable
     paths:
       - 'apps/vscode-ext/**'
       - 'packages/superdoc/**'