curl --request GET \
  --url https://api.portable.io/v2/workflows/{id}/webhooks \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": 123,
      "webhook_id": "<string>",
      "workflow_id": 123,
      "provider": "slack",
      "url": "<string>",
      "status": "active",
      "trigger_count": 123,
      "credential_source_id": 123,
      "created_at": "2023-11-07T05:31:56Z",
      "event_type": "<string>",
      "last_triggered_at": "2023-11-07T05:31:56Z"
    }
  ]
}