[Fix] Vote 종료 시각 UTC 저장 누락 수정 (#84)

Author: soonge2

src/main/java/com/moa/moa_server/domain/vote/service/VoteService.java

@@ -105,7 +105,7 @@ public Long createVote(Long userId, VoteCreateRequest request) {
                 group,
                 request.content(),
                 imageUrl,
-                request.closedAt(),
+                utcTime,
                 request.anonymous(),
                 status,
                 adminVote