Delete a retrospective step

curl --request DELETE \
  --url https://api.rootly.com/v1/retrospective_steps/{id} \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "id": "df0abfdc-14a9-4a58-b8e8-ef1f902d5f1e",
    "type": "retrospective_steps",
    "attributes": {
      "retrospective_process_id": "b9d5a4e3-fb55-4c54-b58f-1553e4559649",
      "title": "Step 11",
      "description": "Bar",
      "incident_role_id": "d31b24a9-ca06-4bde-a7e3-555452a02774",
      "due_after_days": null,
      "position": 1,
      "skippable": true,
      "created_at": "2025-12-19T18:17:58.753-08:00",
      "updated_at": "2025-12-19T18:17:59.471-08:00"
    }
  }
}