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

Author: renovate[bot]

website/package.json

@@ -14,7 +14,7 @@
     "class-variance-authority": "^0.7.0",
     "clsx": "^2.1.1",
     "lucide-react": "^0.456.0",
-    "next": "14.2.16",
+    "next": "15.5.16",
     "react": "^18",
     "react-dom": "^18",
     "tailwind-merge": "^2.5.4",