wasapi: Fix a type mismatch in QueryInterface

Co-authored-by: Anonymous Maarten <madebr@users.noreply.github.com>

src/audio/wasapi/SDL_wasapi.c

@@ -641,7 +641,7 @@ static int mgmtthrtask_PrepDevice(void *userdata)
     // Try querying IAudioClient3 if sharemode is AUDCLNT_SHAREMODE_SHARED
     if (sharemode == AUDCLNT_SHAREMODE_SHARED) {
         IAudioClient3 *client3 = NULL;
-        ret = IAudioClient_QueryInterface(client, &SDL_IID_IAudioClient3, &client3);
+        ret = IAudioClient_QueryInterface(client, &SDL_IID_IAudioClient3, (void**)&client3);
         if (SUCCEEDED(ret)) {
             UINT32 default_period_in_frames = 0;
             UINT32 fundamental_period_in_frames = 0;