chore(deps): update dependency graphql-middleware to v1.7.6

Author: renovate-bot

package.json

@@ -27,7 +27,7 @@
     "@types/graphql": "0.13.4",
     "ava": "0.25.0",
     "graphql": "0.13.2",
-    "graphql-middleware": "1.7.3",
+    "graphql-middleware": "1.7.6",
     "graphql-tools": "4.0.0",
     "prettier": "1.14.3",
     "prettier-check": "2.0.0",

yarn.lock

@@ -237,7 +237,7 @@ anymatch@^1.3.0:
     micromatch "^2.1.5"
     normalize-path "^2.0.0"
 
-apollo-link@^1.2.2, apollo-link@^1.2.3:
+apollo-link@^1.2.3:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/apollo-link/-/apollo-link-1.2.3.tgz#9bd8d5fe1d88d31dc91dae9ecc22474d451fb70d"
   dependencies:
@@ -1840,13 +1840,13 @@ graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
 
-graphql-middleware@1.7.3:
-  version "1.7.3"
-  resolved "https://registry.yarnpkg.com/graphql-middleware/-/graphql-middleware-1.7.3.tgz#c631e5721d865aacd53205d4d906df1a42bf82d9"
+graphql-middleware@1.7.6:
+  version "1.7.6"
+  resolved "https://registry.yarnpkg.com/graphql-middleware/-/graphql-middleware-1.7.6.tgz#f226bf6671f3d82a9378f8b335804c8e44d21733"
   dependencies:
-    graphql-tools "^3.0.5"
+    graphql-tools "^4.0.0"
 
-graphql-tools@4.0.0:
+graphql-tools@4.0.0, graphql-tools@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/graphql-tools/-/graphql-tools-4.0.0.tgz#6ea01937c6f947212f83567ba687e97c22fdd2a6"
   dependencies:
@@ -1856,16 +1856,6 @@ graphql-tools@4.0.0:
     iterall "^1.1.3"
     uuid "^3.1.0"
 
-graphql-tools@^3.0.5:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/graphql-tools/-/graphql-tools-3.1.1.tgz#d593358f01e7c8b1671a17b70ddb034dea9dbc50"
-  dependencies:
-    apollo-link "^1.2.2"
-    apollo-utilities "^1.0.1"
-    deprecated-decorator "^0.1.6"
-    iterall "^1.1.3"
-    uuid "^3.1.0"
-
 graphql@0.13.2:
   version "0.13.2"
   resolved "https://registry.yarnpkg.com/graphql/-/graphql-0.13.2.tgz#4c740ae3c222823e7004096f832e7b93b2108270"