List usage alert configs

curl --request GET \
  --url https://api.sevalla.com/v3/usage-alerts \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": "fb5e5168-4281-4bec-94c5-0d1584e9e657",
      "company_id": "fb5e5168-4281-4bec-94c5-0d1584e9e657",
      "project_id": null,
      "limit_usd": 100,
      "emails": [
        "billing@example.com"
      ],
      "triggers": [
        {
          "id": "fb5e5168-4281-4bec-94c5-0d1584e9e657",
          "percentage": 80,
          "last_fired_at": null
        }
      ],
      "created_at": "2025-01-30T00:00:00.000Z",
      "updated_at": "2025-01-30T00:00:00.000Z"
    }
  ],
  "total": 42,
  "offset": 0,
  "limit": 25
}