Update integTest scripts

Signed-off-by: Peter Zhu <zhujiaxi@amazon.com>

Author: peterzhuamazon

scripts/components/OpenSearch/integtest.sh

@@ -7,4 +7,5 @@
 # this file be licensed under the Apache-2.0 license or a
 # compatible open source license.
 
+echo "Run systemd integTest for OpenSearch core engine"
 ./gradlew qa:systemd-test:integTest --tests org.opensearch.systemdinteg.SystemdIT --console=plain