Update semver to the latest version 🚀 (#6283)

* fix(package): update semver to version 7.0.0

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

Author: greenkeeper[bot]

package-lock.json

@@ -49,7 +49,7 @@
     "pg-promise": "10.3.1",
     "pluralize": "^8.0.0",
     "redis": "2.8.0",
-    "semver": "6.3.0",
+    "semver": "7.0.0",
     "subscriptions-transport-ws": "0.9.16",
     "tv4": "1.3.0",
     "uuid": "3.3.3",