fix: build ci-cd 오류 해결

Author: ShipFriend0516

app/entities/common/Toast/ToastProvider.tsx

@@ -11,7 +11,7 @@ interface Toast {
 const ToastProvider = () => {
   const { toasts, removeToast } = useToastStore();
 
-  const reversedToasts = toasts.toReversed();
+  const reversedToasts = [...toasts].reverse();
   return (
     <div
       className={

app/series/[slug]/page.tsx

@@ -31,7 +31,7 @@ const SeriesDetailPage = ({ params }: SeriesDetailPageProps) => {
     loading || !series?.posts
       ? []
       : orderOption === 'latest'
-        ? series.posts?.toReversed()
+        ? [...series.posts].reverse()
         : series.posts;
 
   return (