chore: update eslint plugin version

Author: yyx990803

packages/@vue/cli-plugin-eslint/package.json

@@ -25,6 +25,6 @@
     "babel-eslint": "^8.2.1",
     "eslint": "^4.16.0",
     "eslint-loader": "^1.9.0",
-    "eslint-plugin-vue": "^4.0.0"
+    "eslint-plugin-vue": "^4.2.0"
   }
 }