fix: equals 판단 실패 해결을 위한ScheduleFactory 내 나노초 제거 추가

src/main/kotlin/roomescape/schedule/infrastructure/persistence/ScheduleEntity.kt

@@ -62,7 +62,7 @@ object ScheduleEntityFactory {
         return ScheduleEntity(
             id = id,
             date = date,
-            time = time,
+            time = time.withSecond(0).withNano(0),
             storeId = storeId,
             themeId = themeId,
             status = ScheduleStatus.AVAILABLE