List pulses

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

{
  "data": [
    {
      "id": "<string>",
      "type": "pulses",
      "attributes": {
        "source": "<string>",
        "summary": "<string>",
        "services": [
          {
            "name": "<string>",
            "slug": "<string>",
            "description": "<string>",
            "public_description": "<string>",
            "notify_emails": [
              "<string>"
            ],
            "color": "<string>",
            "position": 123,
            "backstage_id": "<string>",
            "external_id": "<string>",
            "pagerduty_id": "<string>",
            "opsgenie_id": "<string>",
            "cortex_id": "<string>",
            "service_now_ci_sys_id": "<string>",
            "github_repository_name": "<string>",
            "github_repository_branch": "<string>",
            "gitlab_repository_name": "<string>",
            "gitlab_repository_branch": "<string>",
            "environment_ids": [
              "<string>"
            ],
            "service_ids": [
              "<string>"
            ],
            "owner_group_ids": [
              "<string>"
            ],
            "owner_user_ids": [
              123
            ],
            "alert_urgency_id": "<string>",
            "alerts_email_enabled": true,
            "alerts_email_address": "<string>",
            "slack_channels": [
              {
                "id": "<string>",
                "name": "<string>"
              }
            ],
            "slack_aliases": [
              {
                "id": "<string>",
                "name": "<string>"
              }
            ],
            "alert_broadcast_enabled": true,
            "alert_broadcast_channel": {
              "id": "<string>",
              "name": "<string>"
            },
            "incident_broadcast_enabled": true,
            "incident_broadcast_channel": {
              "id": "<string>",
              "name": "<string>"
            },
            "created_at": "<string>",
            "updated_at": "<string>"
          }
        ],
        "environments": [
          {
            "name": "<string>",
            "slug": "<string>",
            "description": "<string>",
            "notify_emails": [
              "<string>"
            ],
            "color": "<string>",
            "position": 123,
            "slack_channels": [
              {
                "id": "<string>",
                "name": "<string>"
              }
            ],
            "slack_aliases": [
              {
                "id": "<string>",
                "name": "<string>"
              }
            ],
            "created_at": "<string>",
            "updated_at": "<string>"
          }
        ],
        "external_url": "<string>",
        "labels": [
          {
            "key": "<string>",
            "value": "<string>"
          }
        ],
        "refs": [
          {
            "key": "<string>",
            "value": "<string>"
          }
        ],
        "data": {},
        "created_at": "<string>",
        "updated_at": "<string>"
      }
    }
  ],
  "links": {
    "self": "<string>",
    "first": "<string>",
    "prev": "<string>",
    "next": "<string>",
    "last": "<string>"
  }
}