qa/suites/upgrade/octopus-x/stress-split-no-cephadm: exclude ceph-volume
To address failures like
```
Command failed on smithi096 with status 100: 'sudo DEBIAN_FRONTEND=noninteractive apt-get -y --force-yes -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" install ceph=
15.2.15-11-g5f8f263c-1focal ceph-mds=
15.2.15-11-g5f8f263c-1focal ceph-mgr=
15.2.15-11-g5f8f263c-1focal ceph-common=
15.2.15-11-g5f8f263c-1focal ceph-fuse=
15.2.15-11-g5f8f263c-1focal ceph-test=
15.2.15-11-g5f8f263c-1focal ceph-volume=
15.2.15-11-g5f8f263c-1focal radosgw=
15.2.15-11-g5f8f263c-1focal python3-rados=
15.2.15-11-g5f8f263c-1focal python3-rgw=
15.2.15-11-g5f8f263c-1focal python3-cephfs=
15.2.15-11-g5f8f263c-1focal python3-rbd=
15.2.15-11-g5f8f263c-1focal libcephfs2=
15.2.15-11-g5f8f263c-1focal librados2=
15.2.15-11-g5f8f263c-1focal librbd1=
15.2.15-11-g5f8f263c-1focal rbd-fuse=
15.2.15-11-g5f8f263c-1focal'
```
Signed-off-by: Neha Ojha <nojha@redhat.com>