improve tracking of VM deletions

src/vctp.yml

@@ -20,6 +20,8 @@ settings:
   hourly_snapshot_max_age_days: 60
   daily_snapshot_max_age_months: 12
   snapshot_cleanup_cron: "30 2 * * *"
+  hourly_snapshot_retry_seconds: 300
+  hourly_snapshot_max_retries: 3
   hourly_job_timeout_seconds: 1200
   hourly_snapshot_timeout_seconds: 600
   daily_job_timeout_seconds: 900