loongson/pypi: links for demjson3

loongson/mirror demjson3-3.0.6.tar.gz
loongson/mirror demjson3-3.0.5.tar.gz
loongson/mirror demjson3-3.0.4.tar.gz
loongson/mirror demjson3-3.0.3.tar.gz
loongson/mirror demjson3-3.0.2.tar.gz
loongson/mirror demjson3-3.0.1.tar.gz
loongson/mirror demjson3-3.0.0.tar.gz