Update ws to the latest version 🚀 (#6146)

* fix(package): update ws to version 7.2.0

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

Author: greenkeeper[bot]

package-lock.json

@@ -53,7 +53,7 @@
     "uuid": "3.3.3",
     "winston": "3.2.1",
     "winston-daily-rotate-file": "3.10.0",
-    "ws": "7.1.2"
+    "ws": "7.2.0"
   },
   "devDependencies": {
     "@babel/cli": "7.6.4",