This needs to be done through the scheduler:

• insert task type about gitlab lister (scheduler db)
• insert recurring tasks about listing gitlab.com (scheduler db)
• update the python3-swh.lister dependency on scheduler node (manifest declares the task_packages deps to be required to be installed, not to be the latest...)
• update the scheduler configuration (swh-site/defaults.yaml)

The ingestion will take place naturally after that (~> lister will schedule new git origins to ingest).