Get cars for a Billing Account

curl --request GET \
  --url https://fleet.staging.ezprk.dev/api/billing-accounts/{baId}/cars \
  --header 'Authorization: Bearer <token>'

{
  "content": [
    {
      "licenseNumber": "<string>"
    }
  ],
  "page": {
    "size": 123,
    "number": 123,
    "totalElements": 123,
    "totalPages": 123
  }
}