Add renovate bot to version app
Problem
Security scanning found ~ 40 critical / high severity security problems in the version app dependencies see https://gitlab.com/gitlab-org/gitlab-services/version.gitlab.com/-/issues/26, most are due to outdated gems.
Desired Outcome
We add renovate bot to the project to keep it up to date from now on.
Proposed solution
- Get the project covered by https://gitlab.com/gitlab-org/frontend/renovate-gitlab-bot
- Getting dependencies up to date beforehand is covered by #27 (closed)