curl --request GET \
  --url https://api.chift.eu/consumers/{consumer_id}/commerce/customers

{
  "items": [
    {
      "id": "<string>",
      "source_ref": {
        "id": "<string>",
        "model": "<string>"
      },
      "first_name": "<string>",
      "last_name": "<string>",
      "phone": "<string>",
      "email": "<string>",
      "language": "<string>",
      "internal_notes": "<string>",
      "currency": "<string>",
      "addresses": [],
      "created_on": "2023-11-07T05:31:56Z"
    }
  ],
  "total": 1,
  "page": 2,
  "size": 2
}