fix zenith-proxy systemd unitfile to use appliances_state_dir for ssh key

Author: sjpb

roles/zenith_proxy/templates/client.service.j2

@@ -24,7 +24,7 @@ ExecStart=/usr/bin/podman run \
   --name {{ zenith_proxy_client_container_name }} \
   --security-opt label=disable \
   --volume /etc/zenith/{{ zenith_proxy_service_name }}:/etc/zenith:ro \
-  --volume {{ zenith_proxy_service_name }}-ssh:/home/zenith/.ssh \
+  --volume {{ appliances_state_dir }}/{{ zenith_proxy_service_name }}-ssh:/home/zenith/.ssh \
   {{ zenith_proxy_client_image }}
 ExecStop=/usr/bin/podman stop --ignore -t 10 {{ zenith_proxy_client_container_name }}
 ExecStopPost=/usr/bin/podman rm --ignore -f {{ zenith_proxy_client_container_name }}