Update an incident retrospective step

curl --request PUT \
  --url https://api.rootly.com/v1/incident_retrospective_steps/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/vnd.api+json' \
  --data '
{
  "data": {
    "type": "incident_retrospective_steps",
    "attributes": {
      "title": "<string>",
      "description": "<string>",
      "due_date": "<string>",
      "position": 123,
      "skippable": true,
      "status": "todo"
    }
  }
}
'

{
  "data": {
    "id": "<string>",
    "type": "incident_retrospective_steps",
    "attributes": {
      "retrospective_step_id": "<string>",
      "incident_id": "<string>",
      "title": "<string>",
      "created_at": "<string>",
      "updated_at": "<string>",
      "description": "<string>",
      "status": "todo",
      "kind": "<string>",
      "due_date": "<string>",
      "position": 123,
      "skippable": true
    }
  }
}