loongson/pypi: links for micropython-cpython-upip

loongson/mirror micropython-cpython-upip-1.2.6.tar.gz
loongson/mirror micropython-cpython-upip-0.3.tar.gz
loongson/mirror micropython-cpython-upip-0.2.tar.gz
loongson/mirror micropython-cpython-upip-0.0.tar.gz