Update semver to the latest version 🚀 (#5719)

* fix(package): update semver to version 6.1.2

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

Author: greenkeeper[bot]

package-lock.json

@@ -45,7 +45,7 @@
     "parse": "2.4.0",
     "pg-promise": "8.7.2",
     "redis": "2.8.0",
-    "semver": "6.1.1",
+    "semver": "6.1.2",
     "subscriptions-transport-ws": "0.9.16",
     "tv4": "1.3.0",
     "uuid": "3.3.2",