fix: fixed item updated (#1461)

* fix: fixed item updated

* fix: fixed item updated callback

* Update ClusterRendererMultipleItems.java

Author: kikoso

library/src/main/java/com/google/maps/android/clustering/view/ClusterRendererMultipleItems.java

@@ -1114,6 +1114,9 @@ private void perform(MarkerModifier markerModifier) {
                     } else {
                         markerWithPosition = new MarkerWithPosition<>(marker, item);
                         markerModifier.animate(markerWithPosition, marker.getPosition(), item.getPosition());
+                        if (!markerWithPosition.position.equals(item.getPosition())) {
+                            onClusterItemUpdated(item, marker);
+                        }
                     }
                     onClusterItemRendered(item, marker);
                     newMarkers.add(markerWithPosition);