Intel: Fix classic compiler version check for C++20 flag

The `-std=c++20` flag was added by Intel compiler 2019 update 3.

Modules/Compiler/Intel-CXX.cmake

@@ -51,7 +51,7 @@ else()
 
   set(CMAKE_CXX_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -x c++)
 
-  if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 19.0.0)
+  if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 19.0.0.20190206)
     set(CMAKE_CXX20_STANDARD_COMPILE_OPTION "-std=c++20")
     set(CMAKE_CXX20_EXTENSION_COMPILE_OPTION "-std=gnu++20")
   endif()