Enchance health check in GenAIExample docker-compose (#1410)

Fix service launch issue

1. Update Gaudi TGI image from 2.0.6 to 2.3.1
2. Change the hpu-gaudi TGI health check condition.

Signed-off-by: Wang, Xigui <xigui.wang@intel.com>

VisualQnA/tests/test_compose_on_gaudi.sh

@@ -41,6 +41,7 @@ function start_services() {
     export BACKEND_SERVICE_IP=${ip_address}
     export BACKEND_SERVICE_PORT=8888
     export NGINX_PORT=80
+    export host_ip=${ip_address}
 
     sed -i "s/backend_address/$ip_address/g" $WORKPATH/ui/svelte/.env