loongson/pypi: links for vcstool2

loongson/mirror vcstool2-0.4.5.tar.gz
loongson/mirror vcstool2-0.4.5-py3-none-any.whl
loongson/mirror vcstool2-0.4.3-py3-none-any.whl
loongson/mirror vcstool2-0.4.2-py3-none-any.whl
loongson/mirror vcstool2-0.4.1-py3-none-any.whl