fix: update playground nextjs version

Author: sanshuiyijing

packages/playground-nextjs/package.json

@@ -50,7 +50,7 @@
     "@types/react": "^18.2.66",
     "@types/react-dom": "^18.2.22",
     "eslint": "^8.57.0",
-    "eslint-config-next": "14.2.5",
+    "eslint-config-next": "14.2.25",
     "postcss": "^8.4.38",
     "tailwindcss": "^3.4.4",
     "typescript": "^5.2.2"