revert: can't update CPM before cpm-cmake/CPM.cmake#630

Author: higaski

CMakeLists.txt

@@ -15,7 +15,7 @@ if(NOT cpm.cmake_SOURCE_DIR)
   FetchContent_Declare(
     CPM.cmake
     GIT_REPOSITORY "https://github.com/cpm-cmake/CPM.cmake.git"
-    GIT_TAG v0.40.5)
+    GIT_TAG v0.40.2)
   FetchContent_MakeAvailable(CPM.cmake)
   include(${cpm.cmake_SOURCE_DIR}/cmake/CPM.cmake)
 endif()