Retrieves all unavailable events for the authenticated user
cURL
curl --request GET \ --url http://localhost:3000/api/unavailable-events/get-unavailable-events
[ { "id": "<string>", "title": "<string>", "date": 123, "startTime": 123, "endTime": 123, "artistId": "<string>", "createdAt": 123, "updatedAt": 123 } ]
Unavailable events retrieved successfully