Deploy new demo only on release

Author: ai

.github/workflows/deploy.yaml

@@ -1,13 +1,14 @@
 name: Deploy
 on:
   push:
-    branches:
-      - main
+    tags:
+      - '*'
 permissions:
   contents: write
 jobs:
   deploy:
     name: Demo Deploy
+    if: startsWith(github.ref, 'refs/tags/')
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the repository