loongson/pypi: links for s3backup

loongson/mirror S3Backup-0.12.tar.gz
loongson/mirror S3Backup-0.12-py3-none-any.whl
loongson/mirror S3Backup-0.11-py3-none-any.whl
loongson/mirror S3Backup-0.10.tar.gz
loongson/mirror S3Backup-0.10-py3-none-any.whl
loongson/mirror S3Backup-0.9.tar.gz
loongson/mirror S3Backup-0.8.tar.gz
loongson/mirror S3Backup-0.7.zip
loongson/mirror S3Backup-v0.6.zip
loongson/mirror S3Backup-v0.5-alpha.zip
loongson/mirror S3Backup-v0.4-alpha.zip
loongson/mirror S3Backup-v0.3-alpha.zip