added new test to upgrade client first and also added rbd workload
to run in parallel to upgrades in firefly/older and firefly/newer suites

Signed-off-by: tamil <tamil.muthamizhan@inktank.com>
Merge pull request #198 from ceph/wip-9419

Added a case to test #9419 as part of nightlies runs (task #9568)
Merge branch 'firefly' of https://github.com/ceph/ceph-qa-suite into wip-9419
Fixed rgw task, added logging

Signed-off-by: Yuri Weinstein <yuri.weinstein@inktank.com>