Bump graphql from 14.6.0 to 15.5.0

Bumps [graphql](https://github.com/graphql/graphql-js) from 14.6.0 to 15.5.0.
- [Release notes](https://github.com/graphql/graphql-js/releases)
- [Commits](graphql/graphql-js@v14.6.0...v15.5.0)

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

package.json

@@ -22,7 +22,7 @@
     "express-graphql": "^0.12.0",
     "filter-obj": "^2.0.1",
     "got": "^11.8.1",
-    "graphql": "^14.6.0",
+    "graphql": "^15.5.0",
     "hypixelconstants": "^3.3.2",
     "ioredis": "^4.27.2",
     "moment": "^2.29.1",