fixed time of the rpediction when PO saves to influx

prediction_orchestrator/src/main/java/eu/morphemic/prediction_orchestrator/model/Prediction.java

@@ -49,7 +49,7 @@ public class Prediction {
 
     public Point getAsPoint(String metricName, String methodName) {
         return Point.measurement(metricName + "Predictions")
-                .time(timestamp, TimeUnit.SECONDS)
+                .time(predictionTime, TimeUnit.SECONDS)
                 .addField(methodName + "_value", metricValue)
                 .addField(methodName + "_probability", probability)
                 .addField(methodName + "_left_conf", confidence_interval.get(0))