Delete a retrospective step

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

{
  "data": {
    "id": "91d184f8-9857-43bb-8e6f-9862ddde31fe",
    "type": "retrospective_steps",
    "attributes": {
      "retrospective_process_id": "2f4b3c24-723b-4079-b4f7-18bc8ce6c450",
      "title": "Step 11",
      "description": "Bar",
      "incident_role_id": "61f52339-a148-4326-a0bf-2fa7ba87b976",
      "due_after_days": null,
      "position": 1,
      "skippable": true,
      "created_at": "2025-09-15T15:04:23.540-07:00",
      "updated_at": "2025-09-15T15:04:25.028-07:00"
    }
  }
}