loongson/pypi: links for gh-tools-gradient

loongson/mirror gh-tools-gradient-0.0.7.tar.gz
loongson/mirror gh_tools_gradient-0.0.7-py3-none-any.whl
loongson/mirror gh-tools-gradient-0.0.5.tar.gz
loongson/mirror gh_tools_gradient-0.0.5-py3-none-any.whl
loongson/mirror gh-tools-gradient-0.0.3.tar.gz
loongson/mirror gh_tools_gradient-0.0.3-py3-none-any.whl