Merge PR #43425 into master

* refs/pull/43425/head:
	qa: import CommandFailedError from exceptions not run

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>
Reviewed-by: Jos Collin <jcollin@redhat.com>

diff --cc qa/tasks/cephfs/kernel_mount.py
Simple merge

diff --cc qa/tasks/cephfs/mount.py
Simple merge

diff --cc qa/tasks/cephfs/test_snapshots.py
Simple merge

diff --cc qa/tasks/cephfs/test_strays.py
Simple merge