Tester Plugin Bugfix

- Cache interval was previously not correctly set

src/sensors/tester/TesterConfigurator.cpp

@@ -33,6 +33,7 @@ void TesterConfigurator::sensorGroup(TesterSensorGroup& s, CFG_VAL config) {
     for(unsigned int i=0;i < s.getNumSensors();i++) {
 	    std::shared_ptr<TesterSensorBase> sensor = std::make_shared<TesterSensorBase>(s.getGroupName() + std::to_string(i));
         sensor->setMqtt(increaseMqtt(s.getMqttStart(), i));
+        sensor->setCacheInterval(_cacheInterval);
         s.pushBackSensor(sensor);
     }
 }