chore(deps): update dependency @antfu/eslint-config to v6

Author: renovate[bot]

package.json

@@ -132,7 +132,7 @@
   },
   "devDependencies": {
     "@actions/core": "^1.11.1",
-    "@antfu/eslint-config": "^5.4.1",
+    "@antfu/eslint-config": "^6.0.0",
     "@catppuccin/palette": "^1.7.1",
     "@iconify/tools": "^4.1.4",
     "@types/node": "^24.7.2",