Update dependency graphql-yoga to v1.16.7

Author: renovate-bot

basic/server/package.json

@@ -6,7 +6,7 @@
   },
   "dependencies": {
     "graphcool-binding": "1.3.5",
-    "graphql-yoga": "1.16.6"
+    "graphql-yoga": "1.16.7"
   },
   "devDependencies": {
     "now": "8.5.4"

basic/server/yarn.lock

@@ -572,9 +572,9 @@ graphql-tools@^4.0.0, graphql-tools@^4.0.1:
     iterall "^1.1.3"
     uuid "^3.1.0"
 
-graphql-yoga@1.16.6:
-  version "1.16.6"
-  resolved "https://registry.yarnpkg.com/graphql-yoga/-/graphql-yoga-1.16.6.tgz#fc0e75e0214b76afc57e0e7872479a65ff464412"
+graphql-yoga@1.16.7:
+  version "1.16.7"
+  resolved "https://registry.yarnpkg.com/graphql-yoga/-/graphql-yoga-1.16.7.tgz#05bdfadf9a4623b0409bee3c5b75b7b3f7249e6f"
   dependencies:
     "@types/cors" "^2.8.4"
     "@types/express" "^4.11.1"