Retrieves a cause

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

{
  "data": {
    "id": "945c6db1-e567-4476-b913-0762291c11f4",
    "type": "causes",
    "attributes": {
      "slug": "incidunt-sed-debitis-reprehenderit",
      "name": "Incidunt sed debitis reprehenderit.",
      "description": "Sequi ab maiores similique.",
      "position": 1,
      "created_at": "2025-11-28T18:07:36.931-08:00",
      "updated_at": "2025-11-28T18:07:36.931-08:00"
    }
  }
}