refactor: upgrade ws from 8.6.0 to 8.7.0 (#8064)

Author: snyk-bot

package-lock.json

@@ -56,7 +56,7 @@
     "uuid": "8.3.2",
     "winston": "3.7.2",
     "winston-daily-rotate-file": "4.6.1",
-    "ws": "8.6.0"
+    "ws": "8.7.0"
   },
   "devDependencies": {
     "graphql-tag": "2.12.6",