Merge branch 'ds/maintenance-schedule-fuzz' into seen

Allow "git maintenance" schedule to be randomly distributed.

* ds/maintenance-schedule-fuzz:
  maintenance: use random minute in systemd scheduler
  maintenance: swap method locations
  maintenance: use random minute in cron scheduler
  maintenance: use random minute in Windows scheduler
  maintenance: use random minute in launchctl scheduler
  maintenance: add get_random_minute()