Merge branch 'add-sync-service-token-cronjob-part2' into 'master'

Introduce the SyncServiceTokenWorker

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/136078



Merged-by: Matthias Käppler <mkaeppler@gitlab.com>
Approved-by: Matthias Käppler <mkaeppler@gitlab.com>
Reviewed-by: Aleksei Lipniagov <alipniagov@gitlab.com>
Reviewed-by: Matthias Käppler <mkaeppler@gitlab.com>
Co-authored-by: Nikola Milojevic <nmilojevic@gitlab.com>