psync: Update to the latest version

Change-Id: I696a1534563e2ae9012fdbdde1bc7e53253de158
diff --git a/libpsync/debian/control b/libpsync/debian/control
index f65c4d2..c094722 100644
--- a/libpsync/debian/control
+++ b/libpsync/debian/control
@@ -6,7 +6,7 @@
  python3 (>= 3.6.0),
  pkg-config (>= 0.29),
  libboost-all-dev (>= 1.65.1),
- libndn-cxx-dev (>= 0.8.0),
+ libndn-cxx-dev (>= 0.8.1),
  python3-sphinx (>= 1.6.0),
  git
 Standards-Version: 4.1.2