loongson/pypi: links for shutdownhandler

loongson/mirror ShutdownHandler-1.0.0.5.tar.gz
loongson/mirror ShutdownHandler-1.0.0.4.tar.gz
loongson/mirror ShutdownHandler-1.0.0.3.tar.gz
loongson/mirror ShutdownHandler-1.0.0.2.tar.gz