CMakeLists.txt: require cmake 3.5, to be compatible with cmake 4.x

"Compatibility with CMake < 3.5 has been removed from CMake"
-- `cmake` output

"Compatibility with versions of CMake older than 3.5 has been removed"
-- https://cmake.org/cmake/help/latest/release/4.0.html#id15

Author: r00t-

CMakeLists.txt

@@ -1,6 +1,6 @@
 # -*- mode: cmake; -*-
 project(vzlogger)
-cmake_minimum_required(VERSION 2.6.2 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.5.0 FATAL_ERROR)
 if(POLICY CMP0011)
   cmake_policy(SET CMP0011 NEW)
 endif(POLICY CMP0011)