add randomness to kubernaut CronJob

kubernaut/base/cronjob.yaml

@@ -15,5 +15,6 @@ spec:
             command:
             - /bin/sh
             - -c
-            - echo "=^.^= <(meow)"
+            - X=$(( RANDOM % 2)); [[ $X -eq 0 ]] && SAY="meow" || SAY="purr"; echo "=^.^= <(${SAY})"; exit $X;
+
           restartPolicy: OnFailure