loongson/pypi: links for read-only-attributes

loongson/mirror read-only-attributes-1.2.tar.gz
loongson/mirror read_only_attributes-1.2-py3-none-any.whl
loongson/mirror read-only-attributes-1.1.tar.gz
loongson/mirror read_only_attributes-1.1-py3-none-any.whl
loongson/mirror read-only-attributes-1.0.tar.gz
loongson/mirror read_only_attributes-1.0-py3-none-any.whl