chore(package): update graphql to version 14.6.0

Author: greenkeeper[bot]

package.json

@@ -54,7 +54,7 @@
     "@types/simple-mock": "0.8.0",
     "chai": "^4.2.0",
     "chai-as-promised": "^7.1.1",
-    "graphql": "^14.5.4",
+    "graphql": "^14.6.0",
     "graphql-subscriptions": "^1.0.0",
     "ioredis": "^4.6.3",
     "istanbul": "1.0.0-alpha.2",