[DEPRECATED] Retrieves a custom field option

curl --request GET \
  --url https://api.rootly.com/v1/custom_field_options/{id} \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "id": "1",
    "type": "custom_field_options",
    "attributes": {
      "custom_field_id": 127,
      "value": "Earum optio non ut.",
      "color": "#FBE4A0",
      "default": false,
      "position": 1,
      "updated_at": "2025-10-30T19:48:54.769-07:00",
      "created_at": "2025-10-30T19:48:54.769-07:00"
    }
  }
}