chore(deps): update dependency @types/node to v9.6.11

Author: renovate-bot

package.json

@@ -22,7 +22,7 @@
   },
   "devDependencies": {
     "@types/graphql": "0.13.0",
-    "@types/node": "9.6.10",
+    "@types/node": "9.6.11",
     "typescript": "2.8.3"
   },
   "repository": {

yarn.lock

@@ -10,9 +10,9 @@
   version "0.13.0"
   resolved "https://registry.yarnpkg.com/@types/graphql/-/graphql-0.13.0.tgz#78a33a7f429a06a64714817d9130d578e0f35ecb"
 
-"@types/[email protected].10":
-  version "9.6.10"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-9.6.10.tgz#7719bea95660b96a53fe47cb4c75ce3d6e77c96f"
+"@types/[email protected].11":
+  version "9.6.11"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-9.6.11.tgz#3edd774dbf52aa19b5dca7f9d4b38f719c39167a"
 
 "@types/node@^9.4.6":
   version "9.6.7"