Specify backup ttl in hours

ansible/roles/apps/templates/settings/velero.yaml

@@ -104,8 +104,8 @@ schedules:
     # Every night at 3:30.
     schedule: "30 3 * * *"
     template:
-      # Backups are stored for 60 days.
-      ttl: "60d"
+      # Backups are stored for 60 days (1440 hours).
+      ttl: "1440h"
       includedNamespaces:
       # We include all namespaces.
       - '*'