feat: support mirroring of projects

mentioned in commit 1a9714d2

mentioned in merge request gitlab-com/runbooks!5433 (merged)

mentioned in merge request common-ci-tasks-images!72 (merged)

mentioned in merge request gitlab-org/release-tools!2196 (merged)

mentioned in merge request cmbr!152 (merged)

mentioned in merge request pmv!227 (merged)

mentioned in merge request bigquery-loader!76 (merged)

mentioned in merge request terra-transformer!216 (merged)

mentioned in merge request asdf-gl-infra!27 (merged)

mentioned in merge request fluentd-docker!38 (merged)

mentioned in merge request es-diagnostics!15

mentioned in merge request gitlab-com/gl-infra/k8s-workloads/common!253 (merged)

mentioned in merge request slackline!144 (merged)

mentioned in merge request gitlab-com/gl-infra/platform/runway/runwayctl!2 (merged)

mentioned in merge request gcp-quota-exporter!2 (merged)

mentioned in merge request es-diagnostics!18