Retrieves an incident role

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

{
  "data": {
    "id": "3839e3fb-b117-4860-844a-a7e66d9ad5ea",
    "type": "incident_roles",
    "attributes": {
      "slug": "inventore-harum-quasi-placeat",
      "name": "Inventore harum quasi placeat.",
      "summary": null,
      "description": null,
      "position": 1,
      "optional": false,
      "enabled": true,
      "allow_multi_user_assignment": false,
      "created_at": "2026-01-23T22:58:15.463-08:00",
      "updated_at": "2026-01-23T22:58:15.463-08:00"
    }
  }
}