Bump @vue/cli-service from 3.4.0 to 4.0.4 (#11)

Bump @vue/cli-service from 3.4.0 to 4.0.4

Author: Armaldio

package.json

@@ -20,7 +20,7 @@
   "devDependencies": {
     "@vue/cli-plugin-babel": "^3.4.0",
     "@vue/cli-plugin-eslint": "^3.4.0",
-    "@vue/cli-service": "^3.4.0",
+    "@vue/cli-service": "^4.0.4",
     "@vue/eslint-config-airbnb": "^4.0.0",
     "babel-eslint": "^10.0.1",
     "eslint": "^5.8.0",