Maintenance: Bump graphql from 2.0.8 to 2.0.9
Maintenance: Bump graphql from 2.0.8 to 2.0.9

Bumps [graphql](https://github.com/rmosolgo/graphql-ruby) from 2.0.8 to 2.0.9.
- [Release notes](https://github.com/rmosolgo/graphql-ruby/releases)
- [Changelog](https://github.com/rmosolgo/graphql-ruby/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rmosolgo/graphql-ruby/compare/v2.0.8...v2.0.9)
zammad/zammad,monotek/zammad,monotek/zammad,zammad/zammad,zammad/zammad,zammad/zammad,monotek/zammad,zammad/zammad,monotek/zammad,monotek/zammad,monotek/zammad,zammad/zammad