List reporting webhooks

Example response

{
  "reporting_webhooks": [
    {
      "name": "my cool webhook",
      "id": 4,
      "type": "webhook",
      "endpoint": "https://example.com/webhook",
      "full_resolution": true,
      "events": [
        "email_failed",
        "webhook_failed"
      ]
    }
  ]
}