Get Carrier Account list.

Example response

{
  "carrierAccounts": [
    {
      "key": "CARRIER_253",
      "name": "Inpost (Kurier, Paczkomaty, Allegro)",
      "description": "Kurier",
      "options": {
        "isPickupInShipmentCreation": true,
        "isPickupInShipmentConfirmation": true,
        "isShipmentConfirmationRequired": true
      }
    }
  ]
}