loongson/pypi: links for preflightpy

loongson/mirror preflightpy-0.6.2.tar.gz
loongson/mirror preflightpy-0.6.2-py3-none-any.whl
loongson/mirror preflightpy-0.6.1.tar.gz
loongson/mirror preflightpy-0.6.1-py3-none-any.whl
loongson/mirror preflightpy-0.6.0.tar.gz
loongson/mirror preflightpy-0.6.0-py3-none-any.whl
loongson/mirror preflightpy-0.5.0.tar.gz
loongson/mirror preflightpy-0.5.0-py3-none-any.whl