repo-ng: Rebuild with the latest ndn-cxx version

Change-Id: I1aff53e3cd13d899dbae6089ed811321269887b7
diff --git a/repo-ng/Makefile b/repo-ng/Makefile
index facadae..c4260e8 100644
--- a/repo-ng/Makefile
+++ b/repo-ng/Makefile
@@ -11,6 +11,6 @@
 VERSION=0.0.9
 
 # PPA version
-PPA_VERSION=2
+PPA_VERSION=3
 
 include ../packaging.mk