loongson/pypi: links for trim

loongson/mirror trim-0.3.tar.gz
loongson/mirror trim-0.2.1.tar.gz
loongson/mirror trim-0.2.tar.gz
loongson/mirror trim-0.1.2.tar.gz
loongson/mirror trim-0.1.1.tar.gz
loongson/mirror trim-0.1.tar.gz