Minor chnages to groovy test scripts

tools_scripts/publisher_client.groovy

@@ -17,7 +17,7 @@ MqttMessage message = new MqttMessage('Hello world!!'.bytes)
 message.setQos(0)
 print "publishing.."
 long startTime = System.currentTimeMillis()
-(1..10).each {
+(1..100).each {
     client.publish('topic', 'Hello world!!'.bytes, 0, false)
 }
 client.publish('/exit', 'Exit'.bytes, 0, false)

tools_scripts/subscriber_client.groovy

@@ -71,4 +71,4 @@ println "subscribed to topic"
 client.subscribe("/exit", 0)
 println "subscribed to /exit"
 
-callback.waitFinish()
+callback.waitFinish()