fix: next, eslint-config 동일한 버전 적용

Author: DongEun02

package-lock.json

@@ -32,7 +32,7 @@
     "@types/react": "^19",
     "@types/react-dom": "^19",
     "eslint": "^9",
-    "eslint-config-next": "16.1.1",
+    "eslint-config-next": "^16.1.6",
     "eslint-config-prettier": "^10.1.8",
     "prettier": "^3.7.4",
     "prettier-plugin-tailwindcss": "^0.7.2",