loongson/mirror: links for pyjxslt

loongson/mirror pyjxslt-0.7.0.tar.gz
loongson/mirror pyjxslt-0.6.3.tar.gz
loongson/mirror pyjxslt-0.6.2.tar.gz
loongson/mirror pyjxslt-0.6.1.tar.gz
loongson/mirror pyjxslt-0.5.0.tar.gz