loongson/pypi: links for backwork-backup-mysql

loongson/mirror backwork-backup-mysql-0.3.1.tar.gz
loongson/mirror backwork_backup_mysql-0.3.1-py3-none-any.whl
loongson/mirror backwork-backup-mysql-0.3.0.tar.gz
loongson/mirror backwork-backup-mysql-0.1.7.tar.gz
loongson/mirror backwork_backup_mysql-0.1.7-py3-none-any.whl