Improve code suggestion events specs
What does this MR do and why?
Follow-up of /home/felipe/development/gitlab-development-kit/gitlab/ee/spec/requests/api/graphql/analytics/ai_analytics/code_suggestion_events_spec.rb
- Add id field to CodeSuggestionEventType
- Improve specs
MR acceptance checklist
Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.