List webhook destination endpoints

Example response

{
  "endpoints": [
    {
      "createdAt": "2020-04-01T00:00:00Z",
      "id": "wde_01HWDG5ADNBGJ3XXXXXFP8P1GH",
      "name": "My Webhook Endpoint",
      "signingSecrets": [
        {
          "id": "wss_01HWDG5ADNBGXXXXXY07DP8"
        }
      ],
      "url": "https://example.com/webhook"
    }
  ]
}