loongson/pypi: links for scrapyrefs

loongson/mirror scrapyrefs-0.6.0.tar.gz
loongson/mirror scrapyrefs-0.5.0.tar.gz
loongson/mirror scrapyrefs-0.4.0.tar.gz
loongson/mirror scrapyrefs-0.3.0.tar.gz
loongson/mirror scrapyrefs-0.2.1.tar.gz
loongson/mirror scrapyrefs-0.2.0.tar.gz
loongson/mirror scrapyrefs-0.1.0.tar.gz