loongson/pypi: links for pytba

loongson/mirror pyTBA-1.2.1.tar.gz
loongson/mirror pyTBA-1.2.1-py3-none-any.whl
loongson/mirror pyTBA-1.1.1b1.tar.gz
loongson/mirror pyTBA-1.1.1b1-py3-none-any.whl