List alert groups

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

{
  "data": [
    {
      "id": "<string>",
      "attributes": {
        "name": "<string>",
        "description": "<string>",
        "condition_type": "<string>",
        "time_window": 123,
        "created_at": "<string>",
        "updated_at": "<string>",
        "deleted_at": "<string>",
        "slug": "<string>",
        "group_by_alert_title": true,
        "group_by_alert_urgency": true,
        "targets": [
          {
            "target_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
          }
        ],
        "attributes": [
          {
            "json_path": "<string>"
          }
        ],
        "conditions": [
          {
            "property_field_name": "<string>",
            "property_field_value": "<string>",
            "property_field_values": [
              "<string>"
            ],
            "values": [
              {
                "record_id": "<string>",
                "record_type": "<string>"
              }
            ],
            "alert_urgency_ids": [
              "<string>"
            ],
            "conditionable_id": "<string>"
          }
        ]
      }
    }
  ],
  "included": [
    {
      "id": "<string>",
      "type": "<string>",
      "attributes": {},
      "relationships": {}
    }
  ]
}