Update dependency eslint to v9

package.json

@@ -23,7 +23,7 @@
   },
   "homepage": "https://github.com/theme-next/hexo-next-tag#readme",
   "devDependencies": {
-    "eslint": "6.8.0",
+    "eslint": "9.11.0",
     "eslint-config-theme-next": "1.1.4"
   }
 }