fix(package): update yeoman-generator to version 4.6.0

Closes #25

Author: greenkeeper[bot]

package.json

@@ -42,7 +42,7 @@
     "eslint-plugin-vue": "^4.0.0-beta.0",
     "lodash": "^4.17.4",
     "snyk": "^1.52.0",
-    "yeoman-generator": "^2.0.1",
+    "yeoman-generator": "^4.6.0",
     "yosay": "^2.0.1"
   },
   "jest": {