fix(deps): update dependency next to v15 [security]

Author: renovate[bot]

package.json

@@ -42,7 +42,7 @@
     "groq-sdk": "^0.3.2",
     "jotai": "^2.8.2",
     "lucide-react": "^0.363.0",
-    "next": "14.2.3",
+    "next": "15.5.10",
     "next-intl": "^3.14.1",
     "next-themes": "^0.3.0",
     "openai": "^4.38.2",