curl --request GET \
  --url https://api.upwell.com/api/rest/carrier_invoice_approval_requests

{
  "carrierInvoiceApprovalRequests": [
    {
      "carrierInvoice": {
        "carrier": {
          "id": "<string>",
          "name": "<string>"
        },
        "invoiceNumber": "<string>",
        "totalAmount": 123
      },
      "carrierInvoiceId": "<string>",
      "createdAt": "2023-11-07T05:31:56Z",
      "id": "<string>",
      "retryCount": 123,
      "updatedAt": "2023-11-07T05:31:56Z"
    }
  ]
}