lister: Add stagit & gitiles lister task
Refs. swh/meta#5048 (closed)
Refs. swh/meta#5045 (closed)
Depends on swh-lister!486 (merged)
Depends on swh-lister!487 (merged)
Staging instance, all changes can be removed at any time
Refs. swh/meta#5048 (closed)
Refs. swh/meta#5045 (closed)
Depends on swh-lister!486 (merged)
Depends on swh-lister!487 (merged)