Retrieve a rental

curl --request GET \
  --url https://app.supercycle.com/api/v1/rentals/{rental_id} \
  --header 'Authorization: Bearer <token>'

{
  "id": 123,
  "createdAt": "2023-11-07T05:31:56Z",
  "customer": {
    "id": 123,
    "createdAt": "2023-11-07T05:31:56Z",
    "defaultAddress": null,
    "email": null,
    "firstName": null,
    "lastName": null,
    "shopifyId": 123
  },
  "fulfillAt": null,
  "fulfilledAt": null,
  "itemId": 123,
  "minimumRentalEnd": null,
  "originRentalIntentToken": null,
  "receiveAt": null,
  "receivedAt": null,
  "rentalStart": null,
  "rentalEnd": null,
  "restockBy": null,
  "restockedAt": null,
  "packingStatus": "pending",
  "sequentialId": null,
  "shopifyOrderName": "<string>",
  "shopifyOrderId": 123,
  "shopifyOrderLineId": 123,
  "status": "scheduled",
  "returnOrderId": null,
  "timeline_events": [
    {
      "id": 123,
      "eventableId": 123,
      "eventableType": "<string>",
      "eventType": "<string>",
      "metadata": {},
      "createdAt": "2023-11-07T05:31:56Z",
      "updatedAt": "2023-11-07T05:31:56Z",
      "author": "<string>"
    }
  ]
}