loongson/mirror: links for sovietcalendar

loongson/mirror sovietcalendar-1.0.0.tar.gz
loongson/mirror sovietcalendar-1.0.0-py3-none-any.whl
loongson/mirror sovietcalendar-0.1.0.tar.gz
loongson/mirror sovietcalendar-0.1.0-py3-none-any.whl