loongson/pypi: links for cosmicexcelchecker

loongson/mirror cosmicexcelchecker-0.2.3.tar.gz
loongson/mirror cosmicexcelchecker-0.2.2.tar.gz
loongson/mirror cosmicexcelchecker-0.2.2b0.tar.gz
loongson/mirror cosmicexcelchecker-0.2.2a0.tar.gz