Fix spec for routes to the GraphqlController (!26231) · Merge requests · GitLab.org / GitLab FOSS · GitLab

What does this MR do?

GraphQL route spec was testing the wrong endpoint

Does this MR meet the acceptance criteria?

Tests added for this feature/bug
Conforms to the code review guidelines
Conforms to the merge request performance guidelines
Conforms to the style guides (https://about.gitlab.com/handbook/engineering/quality/guidelines/test-engineering/).
Security reports checked/validated by reviewer