loongson/mirror: links for graceful-checker

loongson/mirror graceful_checker-0.1.2-py2.py3-none-any.whl
loongson/mirror graceful_checker-0.1.1-py2.py3-none-any.whl
loongson/mirror graceful_checker-0.1.0-py2.py3-none-any.whl