Delete a retrospective step

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

{
  "data": {
    "id": "522754f4-59d2-43d6-bb00-8f1a274c4b14",
    "type": "retrospective_steps",
    "attributes": {
      "retrospective_process_id": "5a9af855-7b63-4f19-9fa5-f1e11e6cf70d",
      "title": "Step 11",
      "description": "Bar",
      "incident_role_id": "c1d4f208-6208-4a91-bfc8-d47703d2c094",
      "due_after_days": null,
      "position": 1,
      "skippable": true,
      "created_at": "2025-08-21T23:47:06.329-07:00",
      "updated_at": "2025-08-21T23:47:07.607-07:00"
    }
  }
}