[VOL-5256] v2.12 release - baseline build

Makefile
config.mk
Jenkinsfile*
libraries/
makefiles/
tests/
variables/
=========================================
  o Bulk update copyright notice to 2024

Change-Id: I17944b6430ea64eb5235ded0947a32150131ec63
diff --git a/tests/functional/voltctl.yaml b/tests/functional/voltctl.yaml
index 7f39ffe..652d4a3 100644
--- a/tests/functional/voltctl.yaml
+++ b/tests/functional/voltctl.yaml
@@ -1,4 +1,4 @@
-# Copyright 2018-present Open Networking Foundation
+# Copyright 2018-2024 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.