Log Message:
libheif: update to 1.19.5.

1.19.5

fix heif_image_handle_is_premultiplied_alpha() #1394

1.19.4

Fixes a few minor bugs:

    fix crash when encoding tiled unci images
    fix crash in heif_context_encode_grid()
    fix querying the preferred colorspace for monochrome AVIF files
    error when using a chroma format or bit depth that is not supported by the \ 
Kvazaar plugin
    output proper error message when memory allocation failed and use \ 
user-defined security limits
    heif-dec: do not show progress when option --quiet it given