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": "7184c576-6184-4432-a1de-3be9c4714b24",
    "type": "retrospective_process_groups",
    "attributes": {
      "retrospective_process_id": "7cbb2eef-2c3f-42cd-a318-2e833553f8db",
      "sub_status_id": "98be0711-7964-44f8-bb7d-eb22ee9fb7b6",
      "position": 1,
      "updated_at": "2025-12-10T23:31:30.424-08:00",
      "created_at": "2025-12-10T23:31:30.424-08:00"
    },
    "relationships": {
      "retrospective_process_group_steps": {
        "data": []
      }
    }
  }
}