loongson/pypi: links for pulseaudio-switch

loongson/mirror pulseaudio_switch-0.0.4.tar.gz
loongson/mirror pulseaudio_switch-0.0.3.tar.gz
loongson/mirror pulseaudio_switch-0.0.2.tar.gz
loongson/mirror pulseaudio_switch-0.0.1.tar.gz