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": "216bf70d-63d9-465b-9776-cfd897c95403",
    "type": "retrospective_process_groups",
    "attributes": {
      "retrospective_process_id": "685d7e3a-720d-4506-bf40-9de7aff9306c",
      "sub_status_id": "06025f98-5ccd-4ee6-99e3-9e0fd50db536",
      "position": 1,
      "updated_at": "2026-01-23T06:52:29.617-08:00",
      "created_at": "2026-01-23T06:52:29.617-08:00"
    },
    "relationships": {
      "retrospective_process_group_steps": {
        "data": []
      }
    }
  }
}