Delete a retrospective step

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

{
  "data": {
    "id": "0ab4c8a9-382e-41d2-b2c5-141e2c794aa0",
    "type": "retrospective_steps",
    "attributes": {
      "retrospective_process_id": "d3c78d50-96d2-459d-9235-63649d0f77dd",
      "title": "Step 11",
      "description": "Bar",
      "incident_role_id": "d6d8bf0e-2e46-46dc-b090-d1366450c929",
      "due_after_days": null,
      "position": 1,
      "skippable": true,
      "created_at": "2026-02-03T03:28:17.996-08:00",
      "updated_at": "2026-02-03T03:28:19.520-08:00"
    }
  }
}