loongson/pypi: links for altair-widgets

loongson/mirror altair_widgets-0.2.2.tar.gz
loongson/mirror altair_widgets-0.2.1.tar.gz
loongson/mirror altair_widgets-0.2.0.tar.gz
loongson/mirror altair_widgets-0.1.2.tar.gz
loongson/mirror altair_widgets-0.1.1.tar.gz
loongson/mirror altair_widgets-0.1.0.tar.gz