List which version of GitLab the specific Operator is bundled with
As per gitlab-org/gitlab-runner!3396 (comment 901506918) we should list the version of GitLab Runner that's bundled with each operator release, that will make it easy to take decisions based on GitLab Runner versions.
This can be achieved by simply linking to the changelog. https://gitlab.com/gitlab-org/gl-openshift/gitlab-runner-operator/-/blob/master/CHANGELOG.md