repo-ng: Update to the latest version

Change-Id: I3dc25c719d2a2ab74530892a977290348bed40f7
diff --git a/repo-ng/debian/control b/repo-ng/debian/control
index 45c9303..5f2aee6 100644
--- a/repo-ng/debian/control
+++ b/repo-ng/debian/control
@@ -3,7 +3,7 @@
 Maintainer: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
 Build-Depends: debhelper (>= 8.0.0),
  dh-systemd (>= 1.5),
- python (>= 2.7.0),
+ python3 (>= 3.5.0),
  pkg-config (>= 0.26),
  libndn-cxx-dev (>= 0.6.6)
 Standards-Version: 3.9.2