feat: coffee chat 최신순 정렬 추가

related issue #557

src/main/java/org/sopt/makers/internal/member/repository/coffeechat/CoffeeChatRepositoryCustomImpl.java

@@ -96,6 +96,7 @@ public List<CoffeeChatInfoDto> findSearchCoffeeChatInfo(Long memberId, CoffeeCha
                 .leftJoin(member).on(coffeeChat.member.id.eq(member.id))
                 .leftJoin(memberCareer).on(coffeeChat.member.id.eq(memberCareer.memberId))
                 .where(builder)
+                .orderBy(coffeeChat.createdAt.desc())
                 .fetch();
     }