Use the JSON from the gitlab-roulette project for Danger roulette
What does this MR do?
This removes the OOO/at capacity parts of the roulette logic since it's now handled by the https://gitlab.com/gitlab-org/gitlab-roulette project which updates and publishes roulette data every hour.
Resolves #121583 (closed).
Edited by 🤖 GitLab Bot 🤖