refactor(restore_backup): changed the download location
refactor(restore_backup): changed the download location

Before, the restore_backup function used to download the snapshots
from s3 to a location in /tmp, and then it would copy the files to
the table's upload folder.
However, when we tried to restore a large backup (~200gb) the /
file system was out of space. Therefore, we cut the already
unnecessary middleman and download the snapshot directly to the
upload folder.

It's important to note that to download the files directly to the
upload folder, we had to execute the download command using sudo.
Also, to use the azcopy command with sudo, I had to change the location
of the azcopy file from /usr/local/bin to /usr/bin, because while
/usr/local/bin is in the $PATH env variable, it is not in the
secure_path, so sudo wouldn't recognize the azcopy command.

scylladb/scylla-longevity-tests,scylladb/scylla-cluster-tests,scylladb/scylla-longevity-tests,scylladb/scylla-longevity-tests,scylladb/scylla-cluster-tests,scylladb/scylla-cluster-tests,scylladb/scylla-cluster-tests,scylladb/scylla-cluster-tests