Update ws to the latest version 🚀 (#4888)

* fix(package): update ws to version 5.2.2

* chore(package): update lockfile

https://npm.im/greenkeeper-lockfile

Author: greenkeeper[bot]

package-lock.json

@@ -42,7 +42,7 @@
     "uuid": "^3.1.0",
     "winston": "2.4.1",
     "winston-daily-rotate-file": "1.7.2",
-    "ws": "5.2.1"
+    "ws": "5.2.2"
   },
   "devDependencies": {
     "babel-cli": "6.26.0",