Merge PR #49460 into main

* refs/pull/49460/head:
	qa: fix issue with fn unable to fetch port and ip
	qa: fix helper function _check_nfs_cluster_status()
	qa: fix testcase 'test_cluster_set_user_config_with_non_existing_clusterid'
	qa: fix cluster creation failure in test_nfs.py
	qa: test export creation at filepath and symlink
	qa: added test case test_nfs_export_with_invalid_path
	mgr/nfs: disallow non-existent paths when creating export
	mgr/nfs/tests: mock check_cephfs_path
	mgr/nfs/utils: add helper func to check cephfs path

Reviewed-by: Venky Shankar <vshankar@redhat.com>
Reviewed-by: Rishabh Dave <ridave@redhat.com>