[PAID Ticket rules](https://github.com/singlesly/bingx-api/wiki/Paid-tickets) **Price**: 10$ **Acceptance criteria**: - [ ] Endpoint class described - [ ] ListenKeyService contains method - [ ] Unit tests Implement this [endpoint](https://bingx-api.github.io/docs/#/swapV2/listen-key.html#delete%20Listen%20Key)
