loongson/mirror: links for download-3gpp

loongson/mirror download_3gpp-0.7.0.tar.gz
loongson/mirror download_3gpp-0.7.0-py3-none-any.whl
loongson/mirror download_3gpp-0.6.0.tar.gz
loongson/mirror download_3gpp-0.6.0-py3-none-any.whl