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": "e981b6d7-bfad-4c5d-80ca-c1ecd13ef4f1",
    "type": "incident_retrospective_steps",
    "attributes": {
      "retrospective_step_id": "d437d8cb-52cd-4d05-96f3-d5e975bd27f0",
      "incident_id": "725a9a70-2c55-44b7-92e7-97e33d6ad945",
      "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": "2025-08-07T02:20:35.084-07:00",
      "updated_at": "2025-08-07T02:20:35.553-07:00"
    }
  }
}