Silence up-to-date installation targets. (#18842)

CMakeLists.txt

@@ -30,6 +30,8 @@ if(STATIC_BUILD)
     list(APPEND PKG_CONFIG_EXECUTABLE "--static")
 endif()
 
+set(CMAKE_INSTALL_MESSAGE LAZY)
+
 set(CMAKE_C_STANDARD 11)
 set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_INSTALL_DEFAULT_COMPONENT_NAME "netdata")