RAP staging updatesit

Change-Id: I5060a0f30101d45e2f0278ab573c1da7f13960b3
Reviewed-on: https://git.eclipse.org/r/12660
Reviewed-by: Stephan Leicht Vogt <stephan.leicht@bsiag.com>
IP-Clean: Stephan Leicht Vogt <stephan.leicht@bsiag.com>
Tested-by: Stephan Leicht Vogt <stephan.leicht@bsiag.com>
diff --git a/org.eclipse.scout.rap.repository/pom.xml b/org.eclipse.scout.rap.repository/pom.xml
index 8216ad4..4562072 100644
--- a/org.eclipse.scout.rap.repository/pom.xml
+++ b/org.eclipse.scout.rap.repository/pom.xml
@@ -28,7 +28,7 @@
   <name>Eclipse Scout RAP Repository</name>
 
   <properties>
-    <target-platform>eclipse-3.9</target-platform>
+    <target-platform>eclipse-staging</target-platform>
     <platform-version>[3.9,3.10)</platform-version>
     <p2repo-zip-path>${project.build.directory}/org.eclipse.scout.rap.repository-${project.version}.zip</p2repo-zip-path>
   </properties>