expand tgi connect timeout (#424)

Signed-off-by: chensuyue <suyue.chen@intel.com>

ChatQnA/tests/test_chatqna_on_xeon.sh

@@ -67,9 +67,9 @@ function start_services() {
     # Start Docker Containers
     docker compose -f docker_compose.yaml up -d
     n=0
-    until [[ "$n" -ge 200 ]]; do
-        docker logs tgi-service > tgi_service_start.log
-        if grep -q Connected tgi_service_start.log; then
+    until [[ "$n" -ge 500 ]]; do
+        docker logs tgi-service > ${LOG_PATH}/tgi_service_start.log
+        if grep -q Connected ${LOG_PATH}/tgi_service_start.log; then
             break
         fi
         sleep 1s