Update dependency @antfu/eslint-config to v6

Author: renovate[bot]

package.json

@@ -37,7 +37,7 @@
     "prepare": "simple-git-hooks"
   },
   "devDependencies": {
-    "@antfu/eslint-config": "5.4.1",
+    "@antfu/eslint-config": "6.2.0",
     "@changesets/changelog-github": "0.5.1",
     "@changesets/cli": "2.29.7",
     "@tsconfig/node22": "22.0.2",