loongson/pypi: links for octodns-lexicon

loongson/mirror octodns_lexicon-0.1.dev4.tar.gz
loongson/mirror octodns_lexicon-0.1.dev3.tar.gz
loongson/mirror octodns_lexicon-0.1.dev2.tar.gz
loongson/mirror octodns_lexicon-0.1.dev1.tar.gz