chore(deps): update dependency eslint-config-next to v16

Author: renovate[bot]

frontend/package.json

@@ -31,7 +31,7 @@
     "@types/lodash": "^4.14.195",
     "autoprefixer": "^10.4.14",
     "eslint": "^8.57.0",
-    "eslint-config-next": "^14.2.3",
+    "eslint-config-next": "^16.0.0",
     "eslint-config-prettier": "^9.1.0",
     "postcss": "^8.4.21",
     "prettier": "^3.2.5",