chore(deps): update dependency graphql-yoga to v1.5.2

Author: renovate-bot

Diff for: example/package.json

@@ -5,7 +5,7 @@
   },
   "dependencies": {
     "graphql-binding-github": "0.3.18",
-    "graphql-yoga": "1.5.1"
+    "graphql-yoga": "1.5.2"
   },
   "now": {
     "alias": "graphql-binding-github"

Diff for: example/yarn.lock

@@ -535,9 +535,9 @@ graphql-tools@^2.18.0:
     graphql-subscriptions "^0.5.6"
     uuid "^3.1.0"
 
-[email protected].1:
-  version "1.5.1"
-  resolved "https://registry.yarnpkg.com/graphql-yoga/-/graphql-yoga-1.5.1.tgz#b98cebeb8b57cc3eba09dccbdaa11ddc0330e7cc"
+[email protected].2:
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/graphql-yoga/-/graphql-yoga-1.5.2.tgz#5a9bb7dd8afbcbac8c406e7127d15df67bc53885"
   dependencies:
     "@types/cors" "^2.8.3"
     "@types/express" "^4.0.39"