Use `rsync` instead of `wget`
Use `rsync` instead of `wget`

Because of the delta-transfer algorithm of `rsync`, the data volume can
be greatly reduced.

vmoravec/automation,gosipyan/automation,aspiers/automation,aspiers/automation,vmoravec/automation,SUSE-Cloud/automation,aspiers/automation,gosipyan/automation,vmoravec/automation,SUSE-Cloud/automation,SUSE-Cloud/automation,gosipyan/automation,gosipyan/automation,SUSE-Cloud/automation,vmoravec/automation,aspiers/automation