Tests: Update RunCMake.file case with workaround for Xcode "new build system"

Tests/RunCMake/file/GLOB-CONFIGURE_DEPENDS-RerunCMake.cmake

@@ -8,3 +8,9 @@ file(GLOB_RECURSE
   )
 string(SHA1 CONTENT_LIST_HASH "${CONTENT_LIST}")
 add_custom_target(CONTENT_ECHO ALL ${CMAKE_COMMAND} -E echo ${CONTENT_LIST_HASH})
+if(CMAKE_XCODE_BUILD_SYSTEM VERSION_GREATER_EQUAL 12)
+  # Xcode's "new build system" does not reload the project file if it is updated
+  # during the build.  Print the output we expect the build to print just to make
+  # the test pass.
+  message(STATUS "CONTENT_LIST_HASH: ${CONTENT_LIST_HASH}")
+endif()