List webhooks

curl --request GET \
  --url https://api.attio.com/v2/webhooks \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "target_url": "https://example.com/webhook",
      "subscriptions": [
        {
          "event_type": "note.created",
          "filter": {
            "$and": [
              {
                "field": "parent_object_id",
                "operator": "equals",
                "value": "97052eb9-e65e-443f-a297-f2d9a4a7f795"
              }
            ]
          }
        }
      ],
      "id": {
        "workspace_id": "14beef7a-99f7-4534-a87e-70b564330a4c",
        "webhook_id": "23e42eaf-323a-41da-b5bb-fd67eebda553"
      },
      "status": "active",
      "created_at": "2023-04-27T13:22:49.061281000Z"
    }
  ]
}