fix(package): update graphql to version 14.5.4

Closes #7

Author: greenkeeper[bot]

package.json

@@ -35,7 +35,7 @@
     "express": "^4.16.2",
     "express-graphql": "^0.6.11",
     "glob": "^7.1.2",
-    "graphql": "^0.11.7",
+    "graphql": "^14.5.4",
     "jsonwebtoken": "^8.1.0",
     "lodash": "^4.17.4",
     "morgan": "^1.9.0",