loongson/pypi: links for archlinux-metapkg

loongson/mirror archlinux-metapkg-0.3.7.tar.gz
loongson/mirror archlinux-metapkg-0.3.6.tar.gz
loongson/mirror archlinux-metapkg-0.3.5.tar.gz
loongson/mirror archlinux-metapkg-0.3.4.tar.gz