chore(deps): update dependency graphql-tools to v4.0.1

Author: renovate-bot

package.json

@@ -28,7 +28,7 @@
     "ava": "0.25.0",
     "graphql": "0.13.2",
     "graphql-middleware": "1.7.6",
-    "graphql-tools": "4.0.0",
+    "graphql-tools": "4.0.1",
     "prettier": "1.14.3",
     "prettier-check": "2.0.0",
     "semantic-release": "15.8.1",

yarn.lock

@@ -1846,7 +1846,17 @@ graphql-middleware@1.7.6:
   dependencies:
     graphql-tools "^4.0.0"
 
-graphql-tools@4.0.0, graphql-tools@^4.0.0:
+graphql-tools@4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/graphql-tools/-/graphql-tools-4.0.1.tgz#c995a4e25c2967d108c975e508322d12969c8c0e"
+  dependencies:
+    apollo-link "^1.2.3"
+    apollo-utilities "^1.0.1"
+    deprecated-decorator "^0.1.6"
+    iterall "^1.1.3"
+    uuid "^3.1.0"
+
+graphql-tools@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/graphql-tools/-/graphql-tools-4.0.0.tgz#6ea01937c6f947212f83567ba687e97c22fdd2a6"
   dependencies: