message: handle null scheduledDeletionTime
diff: @@ -304,7 +304,7 @@ export class TenantManager {
  };
  await collection.update(query, {
  disabled: true,
  - scheduledDeletionTime: scheduledDeletionTime.toJSON(),
  + scheduledDeletionTime: scheduledDeletionTime?.toJSON(),
  }, null);
  } else {
  await collection.deleteOne({ _id: tenantId });
  