misc: Change version information to develop for v24.0

Change-Id: I5a29cd574256f8a0f8963567ead0af45c1fce9f2

src/Doxyfile

@@ -31,7 +31,7 @@ PROJECT_NAME           = gem5
 # This could be handy for archiving the generated documentation or
 # if some version control system is used.
 
-PROJECT_NUMBER         = v23.1.0.0
+PROJECT_NUMBER         = [DEVELOP-FOR-24.0]
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute)
 # base path where the generated documentation will be put.

src/base/version.cc

@@ -32,6 +32,6 @@ namespace gem5
 /**
  * @ingroup api_base_utils
  */
-const char *gem5Version = "23.1.0.0";
+const char *gem5Version = "DEVELOP-FOR-24.0";
 
 } // namespace gem5