Bulk update copyright notices to 2024

Change-Id: I6e6d6adbe427332634e9253b9df6d070b4e1387d
diff --git a/config.mk b/config.mk
index f7dc560..41a8093 100644
--- a/config.mk
+++ b/config.mk
@@ -1,6 +1,6 @@
 # -*- makefile -*-
 # -----------------------------------------------------------------------
-# Copyright 2023 Open Networking Foundation (ONF) and the ONF Contributors
+# Copyright 2023-2024 Open Networking Foundation (ONF) and the ONF Contributors
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.