Retrieves an alert routing rule

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

{
  "data": {
    "id": "3dbd1f35-af9f-4b2a-879a-4cbda9469336",
    "type": "alert_routing_rules",
    "attributes": {
      "name": "Alert Routing Rule 1",
      "alerts_source_id": "67821ce7-df43-4c6b-ae3f-65847694d626",
      "condition_type": "all",
      "enabled": false,
      "position": 1,
      "destination": {
        "id": "22f3e33a-8752-4917-ac5f-38d60645064f",
        "target_type": "EscalationPolicy",
        "target_id": "1f30704c-776a-4735-931e-df6cf039361f",
        "created_at": "2025-07-23T05:25:23.499-07:00",
        "updated_at": "2025-07-23T05:25:23.499-07:00"
      },
      "created_at": "2025-07-23T05:25:23.403-07:00",
      "updated_at": "2025-07-23T05:25:23.403-07:00",
      "destinations": [
        {
          "id": "22f3e33a-8752-4917-ac5f-38d60645064f",
          "target_type": "EscalationPolicy",
          "target_id": "1f30704c-776a-4735-931e-df6cf039361f",
          "created_at": "2025-07-23T05:25:23.499-07:00",
          "updated_at": "2025-07-23T05:25:23.499-07:00"
        }
      ],
      "conditions": []
    },
    "relationships": {
      "owning_teams": {
        "data": [
          {
            "id": "9ea0ce3c-6d6e-455e-ac6b-4543843fc685",
            "type": "groups"
          }
        ]
      }
    }
  }
}