loongson/pypi: links for c2c-recipe-cssmin

loongson/mirror c2c.recipe.cssmin-0.6.tar.gz
loongson/mirror c2c.recipe.cssmin-0.5.1.tar.gz
loongson/mirror c2c.recipe.cssmin-0.5.tar.gz
loongson/mirror c2c.recipe.cssmin-0.4.tar.gz