loongson/pypi: links for livekit-plugins-hgl

loongson/mirror livekit_plugins_hgl-1.2.20.tar.gz
loongson/mirror livekit_plugins_hgl-1.2.20-py3-none-any.whl
loongson/mirror livekit_plugins_hgl-1.2.19.tar.gz
loongson/mirror livekit_plugins_hgl-1.2.19-py3-none-any.whl
loongson/mirror livekit_plugins_hgl-1.2.18.tar.gz
loongson/mirror livekit_plugins_hgl-1.2.18-py3-none-any.whl