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": "35ab927d-15d5-44c7-9d93-ec7a5f293353",
    "type": "incident_retrospective_steps",
    "attributes": {
      "retrospective_step_id": "5f0cf24b-7d98-43b9-ac81-4d3ab8362a79",
      "incident_id": "9f1e1400-7843-4734-aa48-1289ca1ee6b2",
      "title": "Step 2",
      "description": "Step 2 description",
      "due_date": "2024-12-05T08:10:58.323-08:00",
      "user_id": null,
      "kind": "custom",
      "position": 2,
      "skippable": true,
      "status": "todo",
      "status_changed_at": null,
      "status_changed_by_id": null,
      "created_at": "2025-09-22T15:31:58.673-07:00",
      "updated_at": "2025-09-22T15:31:59.075-07:00"
    }
  }
}