loongson/pypi: links for openvpn-server

loongson/mirror openvpn-server-0.1.0.tar.gz
loongson/mirror openvpn-server-0.0.5.tar.gz
loongson/mirror openvpn-server-0.0.4.tar.gz
loongson/mirror openvpn-server-0.0.3.tar.gz
loongson/mirror openvpn-server-0.0.2.tar.gz
loongson/mirror openvpn-server-0.0.1.tar.gz