curl --request GET \
  --url https://api.hyra.io/activity/{workspaceId}/calendar \
  --header 'Authorization: Bearer <token>'

{
  "days": [
    {
      "day": 123,
      "date": "2023-11-07T05:31:56Z",
      "day_of_week_char": "<string>"
    }
  ],
  "advance_calendar": true
}