message: Fix the method declaration for um::wincodec::IWICBitmapSource::CopyPalette
  This method was declared in wincodec as taking a *const IWICPalette, but according to the
  official documentation and headers this should take a *mut IWICPalette.
diff: @@ -698,7 +698,7 @@ interface IWICBitmapSource(IWICBitmapSourceVtbl): IUnknown(IUnknownVtbl) {
  pDpiY: *mut c_double,
  ) -> HRESULT,
  fn CopyPalette(
  - pIPalette: *const IWICPalette,
  + pIPalette: *mut IWICPalette,
  ) -> HRESULT,
  fn CopyPixels(
  prc: *const WICRect,
  