Add a command to change namespace visibility #3131

Job	Run time
build-ceph	2m 16s
build	9m 41s
build-arm64	28m 22s
pytest (cli)	2m 39s
pytest (cli_change_lb)	3m 18s
atom	17m 30s
discovery (container)	4m 9s
pytest (cli_change_keys)	2m 56s
demo (unsecured)	4m 34s
discovery (embedded)	3m 59s
demo (psk)	5m 43s
pytest (cli_change_ns_visibility)	2m 44s
demo (dhchap)	5m 24s
pytest (state)	2m 48s
ha (sanity)	4m 2s
pytest (multi_gateway)	2m 39s
ha (no_huge)	3m 51s
pytest (server)	3m 9s
ha (ns_lb_change)	2m 56s
ha (no_subsystems)	2m 44s
pytest (grpc)	2m 54s
ha (auto_load_balance)	3m 21s
pytest (omap_lock)	3m 31s
ha (state_transitions)	4m 43s
pytest (log_files)	3m 11s
ha (state_transitions_both_gws)	6m 21s
pytest (nsid)	3m 23s
ha (state_transitions_loop)	12m 58s
ha (state_transitions_rand_loop)	12m 33s
pytest (psk)	2m 30s
ha (late_registration)	4m 36s
pytest (dhchap)	2m 43s
ha (late_registration_loop)	9m 27s
ha (4gws)	9m 6s
ha (4gws_loop)	15m 25s
ha (4gws_create_delete)	12m 0s
ha (4gws_create_delete_loop)	11m 55s
ha (namespaces)	9m 57s
ha (namespaces_loop)	9m 51s
ha (mtls)	3m 37s
ha (notify)	2m 6s
ha (ceph_status)	2m 5s
ha (blocklist)	2m 31s
ha (main_exit)	1m 39s
push-devel-image-to-ceph-registry	1s
push-images-to-ceph-registry	1s
	4h 27m 49s

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