Delete an incident role

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

{
  "data": {
    "id": "d136f93a-d245-4f96-a36f-ff319b1e42ca",
    "type": "incident_roles",
    "attributes": {
      "slug": "et-libero-maxime-illum",
      "name": "Et libero maxime illum.",
      "summary": null,
      "description": null,
      "position": 1,
      "optional": false,
      "enabled": true,
      "allow_multi_user_assignment": false,
      "created_at": "2026-01-16T12:42:05.330-08:00",
      "updated_at": "2026-01-16T12:42:06.866-08:00"
    }
  }
}