root/pypi: links for awssignv4

root/pypi AWSSignV4-0.0.8.tar.gz
root/pypi AWSSignV4-0.0.8-py3-none-any.whl
root/pypi AWSSignV4-0.0.7.tar.gz
root/pypi AWSSignV4-0.0.7-py3-none-any.whl