Update dependency graphql-yoga to v1.14.6

Author: renovate-bot

basic/server/package.json

@@ -6,7 +6,7 @@
   },
   "dependencies": {
     "graphcool-binding": "1.3.5",
-    "graphql-yoga": "1.14.5"
+    "graphql-yoga": "1.14.6"
   },
   "devDependencies": {
     "now": "8.5.4"

basic/server/yarn.lock

@@ -520,9 +520,9 @@ graphql-import@^0.6.0:
   dependencies:
     lodash "^4.17.4"
 
-graphql-middleware@1.2.4:
-  version "1.2.4"
-  resolved "https://registry.yarnpkg.com/graphql-middleware/-/graphql-middleware-1.2.4.tgz#bd333c47e07801689f515892c8e0426b60bf72c2"
+graphql-middleware@1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/graphql-middleware/-/graphql-middleware-1.2.5.tgz#f68c0c399cf573a6334d1d9e04cddfec038ffd4a"
   dependencies:
     graphql-tools "^3.0.2"
 
@@ -593,9 +593,9 @@ graphql-tools@^3.0.2:
     iterall "^1.1.3"
     uuid "^3.1.0"
 
-graphql-yoga@1.14.5:
-  version "1.14.5"
-  resolved "https://registry.yarnpkg.com/graphql-yoga/-/graphql-yoga-1.14.5.tgz#a41e1786b195f55c875df44b7a24d9206ced89e7"
+graphql-yoga@1.14.6:
+  version "1.14.6"
+  resolved "https://registry.yarnpkg.com/graphql-yoga/-/graphql-yoga-1.14.6.tgz#610219af29b0db13636547609aaebb0e320fc503"
   dependencies:
     "@types/cors" "^2.8.4"
     "@types/express" "^4.11.1"
@@ -612,7 +612,7 @@ graphql-yoga@1.14.5:
     graphql "^0.11.0 || ^0.12.0 || ^0.13.0"
     graphql-deduplicator "^2.0.1"
     graphql-import "^0.6.0"
-    graphql-middleware "1.2.4"
+    graphql-middleware "1.2.5"
     graphql-playground-middleware-express "1.6.3"
     graphql-playground-middleware-lambda "1.6.1"
     graphql-subscriptions "^0.5.8"