chore(deps): update devdependency eslint-plugin-nuxt to v4

Author: renovate[bot]

package.json

@@ -20,6 +20,6 @@
     "@nuxtjs/eslint-module": "^3.0.2",
     "babel-eslint": "^10.1.0",
     "eslint": "^7.20.0",
-    "eslint-plugin-nuxt": "^2.0.0"
+    "eslint-plugin-nuxt": "^4.0.0"
   }
 }