Merge pull request #88 from dev-memento/chore/#85-timezone-offset

[FEAT] 널체크 추가

Author: paragon0107

src/main/java/com/official/memento/todo/service/ToDoSchedulerService.java

@@ -26,6 +26,9 @@ public void updateIncompleteTodos() {
         LocalDateTime now = LocalDateTime.now(ZoneOffset.UTC);
 
         for (MemberPersonalInfo memberPersonalInfo : members){
+            if(memberPersonalInfo.getTimeZoneOffset() == null) {
+                continue;
+            }
             LocalDateTime memberLocalTime = now.plusSeconds(
                     ZoneOffset.of(memberPersonalInfo.getTimeZoneOffset()).getTotalSeconds()
             );