[HOTFIX] 시간대 오류 수정

Author: seobeeeee1001

src/main/java/com/example/trace/post/domain/Post.java

@@ -8,10 +8,8 @@
 import lombok.Builder;
 import lombok.Data;
 import lombok.NoArgsConstructor;
-import org.hibernate.annotations.CreationTimestamp;
 import org.hibernate.annotations.OnDelete;
 import org.hibernate.annotations.OnDeleteAction;
-import org.hibernate.annotations.UpdateTimestamp;
 import org.springframework.data.annotation.CreatedDate;
 import org.springframework.data.annotation.LastModifiedDate;
 
@@ -94,6 +92,7 @@ public void editPost(String title, String content) {
     @PrePersist
     protected void onCreate() {
         createdAt = LocalDateTime.now(ZoneId.of("Asia/Seoul"));
+        updatedAt = LocalDateTime.now(ZoneId.of("Asia/Seoul"));
     }
 
     @PreUpdate