chore(deps-dev): bump graphql-tools from 9.0.20 to 9.0.21

Bumps [graphql-tools](https://github.com/ardatan/graphql-tools/tree/HEAD/packages/graphql-tools) from 9.0.20 to 9.0.21.
- [Release notes](https://github.com/ardatan/graphql-tools/releases)
- [Changelog](https://github.com/ardatan/graphql-tools/blob/master/packages/graphql-tools/CHANGELOG.md)
- [Commits](https://github.com/ardatan/graphql-tools/commits/graphql-tools@9.0.21/packages/graphql-tools)

---
updated-dependencies:
- dependency-name: graphql-tools
  dependency-version: 9.0.21
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

package-lock.json

@@ -139,7 +139,7 @@
     "globals": "16.4.0",
     "graphql": "16.11.0",
     "graphql-subscriptions": "3.0.0",
-    "graphql-tools": "9.0.20",
+    "graphql-tools": "9.0.21",
     "gulp": "5.0.1",
     "gulp-clang-format": "1.0.27",
     "gulp-clean": "0.4.0",