loongson/pypi: links for carrier-canadapost

loongson/mirror carrier.canadapost-2021.7-py3-none-any.whl
loongson/mirror carrier.canadapost-2021.7rc2-py3-none-any.whl
loongson/mirror carrier.canadapost-2021.7rc1-py3-none-any.whl
loongson/mirror carrier.canadapost-2021.7rc0-py3-none-any.whl
loongson/mirror carrier.canadapost-2020.4.1-py3-none-any.whl