bump(convex): cd35e616 → a039606b (#4023)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

.claude-plugin/marketplace.json

@@ -927,7 +927,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/get-convex/convex-backend-skill.git",
-        "sha": "cd35e61627dd7905b07c03b3da268e16c5df5009"
+        "sha": "a039606bf5613bafceb744e0721932bcb1b40e8e"
       },
       "homepage": "https://github.com/get-convex/convex-backend-skill",
       "keywords": [