Update Yarn to v4.9.4 (#189)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: astroanu

vue/package.json

@@ -34,5 +34,5 @@
     "httpsnippet": "^3.0.0",
     "lodash": "^4.17.13"
   },
-  "packageManager": "yarn@4.9.3"
+  "packageManager": "yarn@4.9.4"
 }