loongson/pypi: links for pgzero

loongson/mirror pgzero-1.2.1.tar.gz
loongson/mirror pgzero-1.2.1-py3-none-any.whl
loongson/mirror pgzero-1.2.tar.gz
loongson/mirror pgzero-1.2-py3-none-any.whl
loongson/mirror pgzero-1.1.tar.gz
loongson/mirror pgzero-1.0.2.tar.gz
loongson/mirror pgzero-1.0.1.tar.gz
loongson/mirror pgzero-1.0.tar.gz
loongson/mirror pgzero-1.0beta1.tar.gz