fix: 이벤트 시간 지났을때 EventClosedException을 controller에서 잡을 수 있도록 exception 추가

Author: luna156

Diff for: src/main/java/com/softeer/podoarrival/event/controller/ArrivalEventController.java

@@ -3,6 +3,7 @@
 
 import com.softeer.podoarrival.common.response.CommonResponse;
 import com.softeer.podoarrival.event.exception.AsyncRequestExecuteException;
+import com.softeer.podoarrival.event.exception.EventClosedException;
 import com.softeer.podoarrival.event.exception.ExistingUserException;
 import com.softeer.podoarrival.event.model.dto.ArrivalApplicationResponseDto;
 import com.softeer.podoarrival.event.service.ArrivalEventService;
@@ -35,6 +36,8 @@ public CompletableFuture<CommonResponse<ArrivalApplicationResponseDto>> arrivalE
                     // 내부 예외 처리
                     if(ex.getCause() instanceof ExistingUserException) {
                         throw new ExistingUserException("[비동기 에러] 유저가 이미 존재합니다.");
+                    } else if(ex.getCause() instanceof EventClosedException){
+                        throw new EventClosedException(ex.getMessage());
                     } else {
                         log.error("Exception occurred while arrival application", ex);
                         throw new AsyncRequestExecuteException("[비동기 에러] 선착순 요청 중 서버 오류 발생");