[releng] Fix build properties

Change-Id: Id3900db47ae18532449fab7175bf6b4d03cb87ad
Signed-off-by: Ansgar Radermacher <ansgar.radermacher@cea.fr>
diff --git a/plugins/examples/org.eclipse.papyrus.robotics.ros2.examples/build.properties b/plugins/examples/org.eclipse.papyrus.robotics.ros2.examples/build.properties
index 362dfe6..294a616 100644
--- a/plugins/examples/org.eclipse.papyrus.robotics.ros2.examples/build.properties
+++ b/plugins/examples/org.eclipse.papyrus.robotics.ros2.examples/build.properties
@@ -5,5 +5,6 @@
                plugin.properties,\
                about.html,\
                plugin.xml,\
-               models/
+               models/,\
+               testmodels/
 src.includes = about.html