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>",
      "slug": "<string>",
      "description": "<string>",
      "parent_status": "started",
      "position": 123
    }
  }
}'

{
  "data": {
    "id": "10392abe-9841-45f2-bfbe-f2921fd9e29e",
    "type": "sub_statuses",
    "attributes": {
      "name": "Test",
      "description": "This is a description",
      "slug": "test",
      "parent_status": "started",
      "position": 13,
      "deleted_at": null,
      "updated_at": "2025-11-19T20:46:15.146-08:00",
      "created_at": "2025-11-19T20:46:15.146-08:00"
    }
  }
}