fix: trigger release workflow on push to main, not tags

semantic-release creates the tags itself — the workflow needs to run on
push to main so it can analyze commits and decide whether to publish.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: ofershap

.github/workflows/release.yml

@@ -2,7 +2,7 @@ name: Release
 
 on:
   push:
-    tags: ["v*"]
+    branches: [main]
 
 permissions:
   contents: write