loongson/pypi: links for netfetch

loongson/mirror NetFetch-3.0.3.tar.gz
loongson/mirror NetFetch-2.0.3.tar.gz
loongson/mirror NetFetch-2.0.2.tar.gz
loongson/mirror NetFetch-2.0.1.tar.gz
loongson/mirror NetFetch-2.0.0.tar.gz
loongson/mirror NetFetch-1.0.0.tar.gz
loongson/mirror NetFetch-1.0.tar.gz