loongson/pypi: links for subsample

loongson/mirror subsample-0.0.6.tar.gz
loongson/mirror subsample-0.0.5.tar.gz
loongson/mirror subsample-0.0.4.tar.gz
loongson/mirror subsample-0.0.3.tar.gz
loongson/mirror subsample-0.0.2.tar.gz