curl --request GET \
  --url https://api.runflow.io/v1/webhooks/{webhook_id}/deliveries/{delivery_id}/attempts/{id} \
  --header 'Authorization: Bearer <token>'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "delivery_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "attempt_number": 123,
  "status_code": 123,
  "response_body": "<string>",
  "response_time_ms": 123,
  "succeeded": true,
  "next_retry_at": "2023-11-07T05:31:56Z",
  "created_at": "2023-11-07T05:31:56Z",
  "delivery": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "webhook_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "event_type_code": "<string>",
    "payload": {},
    "created_at": "2023-11-07T05:31:56Z",
    "attempts": [
      "<unknown>"
    ],
    "webhook": {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "org_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "url": "<string>",
      "secret_fingerprint": "<string>",
      "disabled_at": "2023-11-07T05:31:56Z",
      "last_triggered_at": "2023-11-07T05:31:56Z",
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z",
      "event_subscriptions": [
        {
          "webhook_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "event_type_code": "<string>"
        }
      ],
      "deliveries": [
        "<unknown>"
      ]
    }
  }
}