Bump @graphql-tools/schema from 9.0.15 to 9.0.16

Bumps [@graphql-tools/schema](https://github.com/ardatan/graphql-tools/tree/HEAD/packages/schema) from 9.0.15 to 9.0.16.
- [Release notes](https://github.com/ardatan/graphql-tools/releases)
- [Changelog](https://github.com/ardatan/graphql-tools/blob/master/packages/schema/CHANGELOG.md)
- [Commits](https://github.com/ardatan/graphql-tools/commits/@graphql-tools/schema@9.0.16/packages/schema)

---
updated-dependencies:
- dependency-name: "@graphql-tools/schema"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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