Update GraphQL gems

What does this MR do and why?

We are updating the GraphQL gems, in order to make the 2.0 update easier.

Screenshots or screen recordings

Screenshots are required for UI changes, and strongly recommended for all other merge requests.

How to set up and validate locally

1. Run bundle exec rake gitlab:graphql:compile_docs
2. Validate that everything works as expected

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.