Bump graphql from 1.7.7 to 1.7.8 (#2610)
Bump graphql from 1.7.7 to 1.7.8 (#2610)

Bumps [graphql](https://github.com/rmosolgo/graphql-ruby) from 1.7.7 to 1.7.8.
- [Changelog](https://github.com/rmosolgo/graphql-ruby/blob/master/CHANGELOG-pro.md)
- [Commits](https://github.com/rmosolgo/graphql-ruby/compare/v1.7.7...v1.7.8)
camallen/Panoptes,zooniverse/Panoptes,zooniverse/Panoptes,camallen/Panoptes,zooniverse/Panoptes,zooniverse/Panoptes,camallen/Panoptes,camallen/Panoptes