Update dependency eslint-config-next to v16

Author: renovate[bot]

package.json

@@ -26,7 +26,7 @@
     "@typescript-eslint/eslint-plugin": "^8.60.1",
     "@typescript-eslint/parser": "^8.60.1",
     "eslint": "^8.57.1",
-    "eslint-config-next": "^15.5.19",
+    "eslint-config-next": "^16.0.0",
     "eslint-config-prettier": "^10.1.8",
     "eslint-config-standard": "^17.1.0",
     "eslint-config-turbo": "^2.9.16",