Update ws to the latest version 🚀 (#888)

* fix(package): update ws to version 7.1.2

* chore(package): update lockfile package-lock.json

Author: greenkeeper[bot]

package-lock.json

@@ -32,7 +32,7 @@
     "@babel/runtime": "7.5.5",
     "@babel/runtime-corejs3": "7.5.5",
     "uuid": "3.3.2",
-    "ws": "7.1.1",
+    "ws": "7.1.2",
     "xmlhttprequest": "1.8.0"
   },
   "devDependencies": {