Update boost dependencies

Change-Id: Id209c616c4457486a73ef145bda82e873a4b6c92
diff --git a/chronochat/debian/control b/chronochat/debian/control
index f08107f..07994a0 100644
--- a/chronochat/debian/control
+++ b/chronochat/debian/control
@@ -5,7 +5,7 @@
 Build-Depends: debhelper (>= 8.0.0),
  python3 (>= 3.8),
  pkg-config (>= 0.29),
- libboost-all-dev (>= 1.65.1),
+ libboost-all-dev (>= 1.71.0),
  libndn-cxx-dev (>= 0.7.0),
  liblog4cxx10-dev (>= 0.10.0),
  protobuf-compiler (>= 2.4.0),