bug: 웨이팅 취소 시 DB 먼저 조회하고 Redis 데이터 삭제하도록 로직 변경#344

Jjiggu merged 1 commit intodevelopGTable/NoWait_BE_MultiModule:developfrom

refactor/#342-waiting-perfomenceGTable/NoWait_BE_MultiModule:refactor/#342-waiting-perfomenceCopy head branch name to clipboard