curl --request GET \
  --url https://api.planetscale.com/v1/organizations/{organization}/databases/{database}/maintenance-schedules \
  --header 'Authorization: Bearer <token>'

{
  "current_page": 123,
  "next_page": 123,
  "next_page_url": "<string>",
  "prev_page": 123,
  "prev_page_url": "<string>",
  "data": [
    {
      "id": "<string>",
      "name": "<string>",
      "created_at": "<string>",
      "updated_at": "<string>",
      "last_window_datetime": "<string>",
      "next_window_datetime": "<string>",
      "duration": 123,
      "day": 123,
      "hour": 123,
      "week": 123,
      "frequency_value": 123,
      "frequency_unit": "day",
      "enabled": true,
      "expires_at": "<string>",
      "deadline_at": "<string>",
      "required": true,
      "pending_vitess_version_update": true,
      "pending_vitess_version": "<string>"
    }
  ]
}