Owls 100113 - Fix for intermittent nightly failure in ItMiiSampleFmwAux.testAIFmwInitialUseCase (#3207)

* Fix for intermittent nightly test failure caused due to cleanup failure.

Author: ankedia

operator/integration-tests/model-in-image/run-test.sh

@@ -12,7 +12,7 @@
 
 set -eu
 set -o pipefail
-trap '[ -z "$(jobs -pr)" ] || kill $(jobs -pr)' SIGINT SIGTERM EXIT
+trap 'status=$? ; set +eu ; set +o pipefail ; kill $(jobs -pr) > /dev/null 2>&1 ; exit $status' SIGINT SIGTERM EXIT
 
 TESTDIR="$( cd "$(dirname "$0")" > /dev/null 2>&1 ; pwd -P )"