chore(deps): bump graphql from 15.4.0 to 15.5.0

Bumps [graphql](https://github.com/graphql/graphql-js) from 15.4.0 to 15.5.0.
- [Release notes](https://github.com/graphql/graphql-js/releases)
- [Commits](https://github.com/graphql/graphql-js/compare/v15.4.0...v15.5.0)

Signed-off-by: dependabot[bot] <support@github.com>

plugins/graphiql/package.json

@@ -37,7 +37,7 @@
     "@material-ui/icons": "^4.9.1",
     "@material-ui/lab": "4.0.0-alpha.45",
     "graphiql": "^1.0.0-alpha.10",
-    "graphql": "15.4.0",
+    "graphql": "15.5.0",
     "react": "^16.13.1",
     "react-dom": "^16.13.1",
     "react-use": "^15.3.3"

yarn.lock

@@ -14104,10 +14104,10 @@ graphql-type-json@^0.3.2:
   resolved "https://registry.npmjs.org/graphql-type-json/-/graphql-type-json-0.3.2.tgz#f53a851dbfe07bd1c8157d24150064baab41e115"
   integrity sha512-J+vjof74oMlCWXSvt0DOf2APEdZOCdubEvGDUAlqH//VBYcOYsGgRW7Xzorr44LvkjiuvecWc8fChxuZZbChtg==
 
-graphql@15.4.0, graphql@^15.3.0:
-  version "15.4.0"
-  resolved "https://registry.npmjs.org/graphql/-/graphql-15.4.0.tgz#e459dea1150da5a106486ba7276518b5295a4347"
-  integrity sha512-EB3zgGchcabbsU9cFe1j+yxdzKQKAbGUWRb13DsrsMN1yyfmmIq+2+L5MqVWcDCE4V89R5AyUOi7sMOGxdsYtA==
+graphql@15.5.0, graphql@^15.3.0:
+  version "15.5.0"
+  resolved "https://registry.npmjs.org/graphql/-/graphql-15.5.0.tgz#39d19494dbe69d1ea719915b578bf920344a69d5"
+  integrity sha512-OmaM7y0kaK31NKG31q4YbD2beNYa6jBBKtMFT6gLYJljHLJr42IqJ8KX08u3Li/0ifzTU5HjmoOOrwa5BRLeDA==
 
 growly@^1.3.0:
   version "1.3.0"