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": "98870573-07d2-4bf2-8da1-4961363fce35",
    "type": "retrospective_process_groups",
    "attributes": {
      "retrospective_process_id": "00c9537a-4b81-4e0c-9d23-a94f768442a6",
      "sub_status_id": "649a9880-18c2-49bd-b803-170c1060008f",
      "position": 1,
      "updated_at": "2026-02-09T09:35:03.651-08:00",
      "created_at": "2026-02-09T09:35:03.651-08:00"
    },
    "relationships": {
      "retrospective_process_group_steps": {
        "data": []
      }
    }
  }
}