Bump next from 16.3.4 to 16.3.6 in /neo/apps/next (#5774)

Bumps [next](https://github.com/vercel/next.js) from 16.3.4 to 16.3.6.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Commits](https://github.com/vercel/next.js/compare/v16.3.4...v16.3.6)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 16.3.6
  dependency-type: direct:production
...

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neo/apps/next/package.json

@@ -49,7 +49,7 @@
     "jotai": "^2.16.0",
     "lexical": "^0.48.0",
     "lucide-static": "1.16.0",
-    "next": "16.3.4",
+    "next": "16.3.6",
     "react": "19.2.3",
     "react-dom": "19.2.3",
     "react-grid-layout": "^1.4.4",