List calendar connections

curl --request GET \
  --url https://api.example.com/v4/calendar-connections/connections \
  --header 'x-meetergo-api-user-id: <api-key>'

{
  "connections": [
    {
      "id": "conn-uuid",
      "provider": "google",
      "email": "user@gmail.com",
      "isPrimary": true,
      "isConnected": true,
      "selectedCalendars": [
        "primary",
        "work-calendar"
      ],
      "createdAt": "2023-11-07T05:31:56Z",
      "updatedAt": "2023-11-07T05:31:56Z"
    }
  ],
  "total": 3
}