List active domains

curl --request GET \
  --url https://api.customeros.ai/domains \
  --header 'X-CUSTOMER-OS-API-KEY: <api-key>'

{
  "domains": [
    {
      "createdDate": "<string>",
      "domain": "<string>",
      "expiredDate": "<string>",
      "nameservers": [
        "<string>"
      ]
    }
  ],
  "requestId": "1234567890abcdef",
  "status": "success"
}