Merge PR #64774 into main

Merge PR #64774 into main

* refs/pull/64774/head:
	test_cephfs.py: delete purge_dir() helper method, use rmtree() instead
	test_cephfs.py: remove rendundant call to purge_dir()
	test_cephfs.py: test rmtree on root
	pybind/cephfs: don't attempt to unlink root in rmtree
	test_cephfs.py: test rmtree with and without should_cancel
	pybind/cephfs: make should_cancel option parameter for rmtree()
	mgr/volumes: clone using cptree() from cephfs python bindings
	test_cephfs: add unit tests for cptree() in cephfs python bindings
	test/pybind/assertions: add helper method assert_less
	pybind/cephfs: use depth-first, non-recursive approach for cloning
	test_cephfs: call object setup/teardown for all tests in TestWithRootUser
	test_cephfs.py: add tests for utimensat()
	pybind/cephfs: add python bindings for utimensat()
	qa/cephfs: add tests for chownat()
	pybind/cephfs: add python bindings for chownat()
	test_cephfs.py: add tests for chmodat()
	pybind/cephfs: add python bindings for chmodat()
	test_cephfs.py: add tests for symlinkat()
	pybind/cephfs: add python binding for symlinkat()
	test_cephfs.py: add test for readlinkat()
	pybind/cephfs: add python binding for readlinkat()
	pybind/cephfs: add tests for statxat()
	pybind/cephfs: add python bindings for statxat()
	test_cephfs.py: add tests for mkdirat()
	pybind/cephfs: add python binding for mkdirat()

Reviewed-by: Venky Shankar <vshankar@redhat.com>
Reviewed-by: Jos Collin <jcollin@redhat.com>