Bump graphql from 15.7.2 to 15.9.0

Bumps [graphql](https://github.com/graphql/graphql-js) from 15.7.2 to 15.9.0.
- [Release notes](https://github.com/graphql/graphql-js/releases)
- [Commits](graphql/graphql-js@v15.7.2...v15.9.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -21,7 +21,7 @@
     "apollo-server-hapi": "^3.12.0",
     "bunyan": "^1.8.15",
     "class-validator": "^0.14.1",
-    "graphql": "^15.7.2",
+    "graphql": "^15.9.0",
     "knex": "3.1.0",
     "pg": "^8.12.0",
     "pm2": "^5.4.2",

yarn.lock

@@ -3079,10 +3079,10 @@ graphql-tag@^2.11.0:
   dependencies:
     tslib "^2.1.0"
 
-graphql@^15.7.2:
-  version "15.7.2"
-  resolved "https://registry.yarnpkg.com/graphql/-/graphql-15.7.2.tgz#85ab0eeb83722977151b3feb4d631b5f2ab287ef"
-  integrity sha512-AnnKk7hFQFmU/2I9YSQf3xw44ctnSFCfp3zE0N6W174gqe9fWG/2rKaKxROK7CcI3XtERpjEKFqts8o319Kf7A==
+graphql@^15.9.0:
+  version "15.9.0"
+  resolved "https://registry.yarnpkg.com/graphql/-/graphql-15.9.0.tgz#4e8ca830cfd30b03d44d3edd9cac2b0690304b53"
+  integrity sha512-GCOQdvm7XxV1S4U4CGrsdlEN37245eC8P9zaYCMr6K1BG0IPGy5lUwmJsEOGyl1GD6HXjOtl2keCP9asRBwNvA==
 
 has-flag@^3.0.0:
   version "3.0.0"