fix(deps): update nextjs monorepo

Author: renovate[bot]

frontend/package.json

@@ -78,7 +78,7 @@
     "@typescript-eslint/eslint-plugin": "^8.13.0",
     "@typescript-eslint/parser": "^8.13.0",
     "eslint": "8.57.1",
-    "eslint-config-next": "14.2.25",
+    "eslint-config-next": "14.2.31",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-jsx-a11y": "^6.10.2",
     "eslint-plugin-prettier": "^5.2.1",