Upgrade to apache karaf 4.2.9

Change-Id: Id42b0b0893ee81cb54a50bf6c76da024a9a2d2a8
diff --git a/tools/package/onos_stage.py b/tools/package/onos_stage.py
index e11a3fa..9dc1973 100755
--- a/tools/package/onos_stage.py
+++ b/tools/package/onos_stage.py
@@ -27,7 +27,7 @@
 
 written_files = set()
 now = time.time()
-karaf_version = "4.2.8"
+karaf_version = "4.2.9"
 karaf_system = "apache-karaf-" + karaf_version + "/system/"
 
 def addFile(tar, dest, file, file_size):