Merge pull request #82 from Donut-DONationUTile/issue/wallet

fix: @RequestBody 제거

src/main/java/zero/eight/donut/controller/WalletController.java

@@ -26,7 +26,7 @@ public ApiResponse<?> walletDetail(@PathVariable Long giftId) {
     }
 
     @PostMapping
-    public ApiResponse<?> walletUpload(@RequestBody WalletUploadRequestDto requestDto) throws IOException {
+    public ApiResponse<?> walletUpload(WalletUploadRequestDto requestDto) throws IOException {
         return walletService.walletUpload(requestDto);
     }
 }