fix(deps): update dependency next to v15.2.2 (#103)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

frontend-demo/package.json

@@ -24,7 +24,7 @@
     "@remixicon/react": "^4.2.0",
     "ai": "^4.0.25",
     "axios": "^1.7.7",
-    "next": "15.2.1",
+    "next": "15.2.2",
     "react": "19.0.0",
     "react-dom": "19.0.0",
     "react-markdown": "^10.0.1",