chore(deps): update dependency @types/graphql to v0.13.0

Author: renovate-bot

package.json

@@ -21,7 +21,7 @@
     "graphql-tools": "2.21.0"
   },
   "devDependencies": {
-    "@types/graphql": "0.12.7",
+    "@types/graphql": "0.13.0",
     "@types/node": "9.6.1",
     "typescript": "2.8.1"
   },

yarn.lock

@@ -2,9 +2,9 @@
 # yarn lockfile v1
 
 
-"@types/graphql@0.12.7":
-  version "0.12.7"
-  resolved "https://registry.yarnpkg.com/@types/graphql/-/graphql-0.12.7.tgz#392e46d6c1bceb7d68c117233cea787dde72780c"
+"@types/graphql@0.13.0":
+  version "0.13.0"
+  resolved "https://registry.yarnpkg.com/@types/graphql/-/graphql-0.13.0.tgz#78a33a7f429a06a64714817d9130d578e0f35ecb"
 
 "@types/[email protected]":
   version "9.6.1"