chore(deps): update dependency graphql to v15.2.0

package.json

@@ -49,7 +49,7 @@
     "chai": "4.2.0",
     "chai-as-promised": "7.1.1",
     "coveralls": "3.1.0",
-    "graphql": "15.1.0",
+    "graphql": "15.2.0",
     "graphql-subscriptions": "1.1.0",
     "mocha": "8.0.1",
     "nyc": "15.1.0",

yarn.lock

@@ -1073,10 +1073,10 @@ [email protected]:
   dependencies:
     iterall "^1.2.1"
 
-graphql@15.1.0:
-  version "15.1.0"
-  resolved "https://registry.yarnpkg.com/graphql/-/graphql-15.1.0.tgz#b93e28de805294ec08e1630d901db550cb8960a1"
-  integrity sha512-0TVyfOlCGhv/DBczQkJmwXOK6fjWkjzY3Pt7wY8i0gcYXq8aogG3weCsg48m72lywKSeOqedEHvVPOvZvSD51Q==
+graphql@15.2.0:
+  version "15.2.0"
+  resolved "https://registry.yarnpkg.com/graphql/-/graphql-15.2.0.tgz#d9c655a523a3196d4b23657ec6ec5963b3bd4970"
+  integrity sha512-tsceRyHfgzZo+ee0YK3o8f0CR0cXAXxRlxoORWFo/CoM1bVy3UXGWeyzBcf+Y6oqPvO27BDmOEVATcunOO/MrQ==
 
 [email protected]:
   version "1.10.5"