chore(deps): update devdependency @antfu/eslint-config to v4

Author: renovate[bot]

package.json

@@ -57,7 +57,7 @@
     "type-fest": "^4.27.0"
   },
   "devDependencies": {
-    "@antfu/eslint-config": "^3.9.1",
+    "@antfu/eslint-config": "^4.8.1",
     "@types/node": "^22.9.0",
     "@vitest/coverage-v8": "^2.1.5",
     "eslint": "^9.15.0",