housekeeping: Improve visibility into performed maintenance tasks
While Gitaly already exposes information about which maintenance tasks are performed as part of OptimizeHousekeeping, we especially don't distinguish between incremental and full repacks. Furthermore, cleanup of stale data doesn't have any metrics at all. This MR fixes both of these issues to improve visibility into performed maintenance tasks.
Closes #4103 (closed)
Edited by Patrick Steinhardt