Update a Retrospective Process Group

curl --request PUT \
  --url https://api.rootly.com/v1/retrospective_process_groups/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/vnd.api+json' \
  --data '{
  "data": {
    "type": "retrospective_process_groups",
    "attributes": {
      "sub_status_id": "<string>",
      "position": 123
    }
  }
}'

{
  "data": {
    "id": "0110eb4c-4797-41a4-b770-4e4ff7cafcc0",
    "type": "retrospective_process_groups",
    "attributes": {
      "retrospective_process_id": "e9d34893-8d65-4d2d-aa73-c28d29a2a902",
      "sub_status_id": "5b07243c-93f1-47e2-a44b-454a01011880",
      "position": 1,
      "updated_at": "2025-08-02T12:40:12.234-07:00",
      "created_at": "2025-08-02T12:40:12.234-07:00"
    },
    "relationships": {
      "retrospective_process_group_steps": {
        "data": []
      }
    }
  }
}