loongson/pypi: links for socketless

loongson/mirror socketless-0.4.0.tar.gz
loongson/mirror socketless-0.3.1.tar.gz
loongson/mirror socketless-0.3.0.tar.gz
loongson/mirror socketless-0.2.0.tar.gz
loongson/mirror socketless-0.1.2.tar.gz
loongson/mirror socketless-0.1.1.tar.gz
loongson/mirror socketless-0.1.tar.gz