Capture previous command exit code in integration tests cleanup (#2503)

* show previous response code

* log previous response code of shell script command

test/tests/test_fn_update/test_resource_change.sh

@@ -22,6 +22,7 @@ minmem2=512
 maxmem2=768
 
 cleanup() {
+    echo "previous response" $?
     log "Cleaning up..."
     clean_resource_by_id $TEST_ID
 }