Creates a Sub-Status

curl --request POST \
  --url https://api.rootly.com/v1/sub_statuses \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/vnd.api+json' \
  --data '
{
  "data": {
    "type": "sub_statuses",
    "attributes": {
      "name": "<string>",
      "parent_status": "started",
      "slug": "<string>",
      "description": "<string>",
      "position": 123
    }
  }
}
'

{
  "data": {
    "id": "b4f7dc2f-94eb-411a-ac76-dd7df345af61",
    "type": "sub_statuses",
    "attributes": {
      "name": "Test",
      "description": "This is a description",
      "slug": "test",
      "parent_status": "started",
      "position": 13,
      "deleted_at": null,
      "updated_at": "2025-12-24T09:28:37.470-08:00",
      "created_at": "2025-12-24T09:28:37.470-08:00"
    }
  }
}