loongson/pypi: links for scrapecanvas

loongson/mirror ScrapeCanvas-1.3.0.tar.gz
loongson/mirror ScrapeCanvas-1.2.1.tar.gz
loongson/mirror ScrapeCanvas-1.2.tar.gz
loongson/mirror ScrapeCanvas-1.1.tar.gz
loongson/mirror ScrapeCanvas-1.0.tar.gz