Delete subscriber does not delete their notifications

export async function deleteSubscriber(subscriberId: string) {
  try {
    return await novu.subscribers.delete(subscriberId);
  } catch (error: unknown) {
    console.error(error);
    return { error: 'Error deleting subscribers.' };
  }
}

  const subscribers = await getAllSubscribers();
  const deletePromises: Promise<unknown>[] = [];

  subscribers.forEach(subscriber => {
    deletePromises.push(deleteSubscriber(subscriber.subscriberId));
  });

  await Promise.all(deletePromises);