loongson/pypi: links for euler-solution-dev

loongson/mirror Euler_Solution.Dev-1.0.20.68.tar.gz
loongson/mirror Euler_Solution.Dev-1.0.20.68-py3-none-any.whl
loongson/mirror Euler_Solution.Dev-1.0.20.67.tar.gz
loongson/mirror Euler_Solution.Dev-1.0.20.67-py3-none-any.whl
loongson/mirror Euler_Solution.Dev-1.0.20.64.tar.gz
loongson/mirror Euler_Solution.Dev-1.0.20.64-py3-none-any.whl