Retrieves an incident role

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

{
  "data": {
    "id": "58dcc298-665e-4208-a400-2c899d5b7bf9",
    "type": "incident_roles",
    "attributes": {
      "slug": "sed-sequi-est-eius",
      "name": "Sed sequi est eius.",
      "summary": null,
      "description": null,
      "position": 1,
      "optional": false,
      "enabled": true,
      "allow_multi_user_assignment": false,
      "created_at": "2025-09-13T20:30:05.338-07:00",
      "updated_at": "2025-09-13T20:30:05.338-07:00"
    }
  }
}