Add support for GitLab CI/CD Components
Summary
GitLab CI/CD components are currently in beta, so I don't expect support being added immediately. I wanted to submit this issue to bring awareness of its existence, and to be ready for when the feature does hit GA. I also wanted to mention that there is already a component added to the CI/CD catalog for Renovate (see project / catalog). It would be great to move away from a remote include to a component.