npm(deps): bump graphql from 15.5.3 to 15.6.0

Bumps [graphql](https://github.com/graphql/graphql-js) from 15.5.3 to 15.6.0.
- [Release notes](https://github.com/graphql/graphql-js/releases)
- [Commits](graphql/graphql-js@v15.5.3...v15.6.0)

---
updated-dependencies:
- dependency-name: graphql
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

yarn.lock

@@ -3350,9 +3350,9 @@ graphql-ws@^5.4.1:
   integrity sha512-maBduPneZOFYb3otLgc9/U+fU3f9MVXLKg6lVVLqA9BDQQ6YR7YhQO21Rf9+44IRBi4l8m35lynFMFQTzN3eAQ==
 
 graphql@^15.5.3:
-  version "15.5.3"
-  resolved "https://registry.yarnpkg.com/graphql/-/graphql-15.5.3.tgz#c72349017d5c9f5446a897fe6908b3186db1da00"
-  integrity sha512-sM+jXaO5KinTui6lbK/7b7H/Knj9BpjGxZ+Ki35v7YbUJxxdBCUqNM0h3CRVU1ZF9t5lNiBzvBCSYPvIwxPOQA==
+  version "15.6.0"
+  resolved "https://registry.yarnpkg.com/graphql/-/graphql-15.6.0.tgz#e69323c6a9780a1a4b9ddf7e35ca8904bb04df02"
+  integrity sha512-WJR872Zlc9hckiEPhXgyUftXH48jp2EjO5tgBBOyNMRJZ9fviL2mJBD6CAysk6N5S0r9BTs09Qk39nnJBkvOXQ==
 
 har-schema@^2.0.0:
   version "2.0.0"