fix(package): update graphql to version 14.0.2

Closes #167

Author: greenkeeper[bot]

package.json

@@ -39,7 +39,7 @@
     "classnames": "^2.2.5",
     "dotenv": "^6.0.0",
     "express": "^4.16.3",
-    "graphql": "^0.13.2",
+    "graphql": "^14.0.2",
     "graphql-tag": "^2.8.0",
     "isomorphic-unfetch": "^2.0.0",
     "jsforce": "^1.9.0",