Send BuildFinished notifications on cached build results.

Dependencies

• [2] YTAYNN7V Queue monitor: Bail out earlier if a step has failed previously
• [*] MHVIT4JY Split hydra-queue-runner.cc more

Change contents

• edit in src/hydra-queue-runner/queue-monitor.cc at line 194
  [2.2424]

  [2.2424]
  +

  + enqueueNotificationItem({NotificationItem::Type::BuildFinished, build->id});
• edit in src/hydra-queue-runner/queue-monitor.cc at line 228
  [4.25183]

  [4.25183]
  +

  + enqueueNotificationItem({NotificationItem::Type::BuildFinished, build->id});