loongson/pypi: links for pdxtra

loongson/mirror pdxtra-1.0.2-py3-none-any.whl
loongson/mirror pdxtra-1.0.1-py3-none-any.whl
loongson/mirror pdxtra-1.0.0.tar.gz
loongson/mirror pdxtra-1.0.0-py3-none-any.whl