Add a CLI command to change host DHCHAP keys. #1484

Job	Run time
build-ceph	1m 56s
build-arm64	1h 0m 19s
build	9m 6s
discovery (container)	3m 56s
demo (unsecured)	4m 11s
discovery (embedded)	3m 40s
ha (sanity)	3m 44s
demo (psk)	6m 4s
atom	0s
ha (ns_lb_change)	3m 50s
demo (dhchap)	4m 36s
ha (no_subsystems)	2m 39s
pytest (cli)	2m 10s
ha (state_transitions)	4m 35s
pytest (cli_change_lb)	7m 48s
ha (state_transitions_both_gws)	6m 13s
pytest (cli_change_keys)	2m 56s
ha (state_transitions_loop)	20m 28s
pytest (state)	2m 32s
ha (state_transitions_rand_loop)	28m 32s
pytest (multi_gateway)	2m 30s
ha (late_registration)	4m 28s
pytest (server)	3m 6s
ha (late_registration_loop)	8m 30s
pytest (grpc)	2m 53s
ha (4gws)	8m 52s
pytest (omap_lock)	3m 6s
ha (4gws_loop)	11m 10s
pytest (log_files)	2m 49s
ha (4gws_create_delete)	8m 49s
pytest (nsid)	2m 58s
ha (4gws_create_delete_loop)	11m 6s
pytest (psk)	2m 4s
ha (namespaces)	12m 12s
pytest (dhchap)	2m 13s
ha (namespaces_loop)	21m 40s
ha (mtls)	3m 30s
ha (notify)	2m 11s
ha (ceph_status)	2m 17s
ha (blocklist)	2m 29s
ha (main_exit)	1m 38s
push-images-to-ceph-registry	0s
	4h 59m 46s

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