loongson/pypi: links for basalt

loongson/mirror basalt-0.2.9.tar.gz
loongson/mirror basalt-0.2.8.tar.gz
loongson/mirror basalt-0.2.7.tar.gz
loongson/mirror basalt-0.2.6.post2.tar.gz
loongson/mirror basalt-0.2.6.post1.tar.gz
loongson/mirror basalt-0.2.6.tar.gz