loongson/pypi: links for datalet

loongson/mirror datalet-0.9.0.tar.gz
loongson/mirror datalet-0.8.9.tar.gz
loongson/mirror datalet-0.8.8.tar.gz
loongson/mirror datalet-0.8.5.tar.gz
loongson/mirror datalet-0.8.1.tar.gz
loongson/mirror datalet-0.8.0.tar.gz
loongson/mirror datalet-0.7.6.tar.gz
loongson/mirror datalet-0.7.5.tar.gz