update portal item id (#546)

Author: TADraeseke

scene/open-scene-portal-item/OpenScenePortalItem.png

@@ -22,7 +22,7 @@ To open a web scene from a portal item:
 
 ## About the data
 
-This sample uses a [Geneva, Switzerland Scene](https://www.arcgis.com/home/item.html?id=c6f90b19164c4283884361005faea852) hosted on ArcGIS Online.
+This sample uses a [Berlin, Germany](https://www.arcgis.com/home/item.html?id=31874da8a16d45bfbc1273422f772270) scene hosted on ArcGIS Online.
 
 ## Relevant API
 

scene/open-scene-portal-item/README.md

@@ -6,7 +6,7 @@ plugins {
 group = 'com.esri.samples'
 
 ext {
-    arcgisVersion = '100.8.0'
+    arcgisVersion = '100.9.0'
 }
 
 javafx {

scene/open-scene-portal-item/build.gradle

@@ -52,7 +52,7 @@ public void start(Stage stage) {
 
       // create a scene from a web scene portal item and set it to the scene view
       Portal portal = new Portal("http://www.arcgis.com/");
-      PortalItem webScene = new PortalItem(portal, "c6f90b19164c4283884361005faea852");
+      PortalItem webScene = new PortalItem(portal, "31874da8a16d45bfbc1273422f772270");
       ArcGISScene scene = new ArcGISScene(webScene);
       sceneView.setArcGISScene(scene);