loongson/pypi: links for pytest-warnings

loongson/mirror pytest-warnings-0.3.1.tar.gz
loongson/mirror pytest_warnings-0.3.1-py2.py3-none-any.whl
loongson/mirror pytest-warnings-0.3.0.tar.gz
loongson/mirror pytest-warnings-0.2.0.zip
loongson/mirror pytest-warnings-0.2.0.tar.gz
loongson/mirror pytest-warnings-0.1.0.zip
loongson/mirror pytest-warnings-0.1.0.tar.gz