build: require newer CMake
We're regularly testing with CMake 3.20 (and this will be updated via
the regular CI VM image bump anyway). All other projects, including the
dependencies libyang-cpp and libnetconf2-cpp already require CMake 3.19,
so let's sync with that.
Change-Id: If9a99f644b515df283275f1a3b43dd2651114e2a
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3db2bc6..9d6b4a0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.0)
+cmake_minimum_required(VERSION 3.19)
project(netconf-cli LANGUAGES CXX)
set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)