[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/Jenkinsfile-voltha-test b/Jenkinsfile-voltha-test
index 5ba7755..02ed46a 100644
--- a/Jenkinsfile-voltha-test
+++ b/Jenkinsfile-voltha-test
@@ -1,4 +1,4 @@
-// Copyright 2017-present Open Networking Foundation
+// Copyright 2017-2024 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.