Bulk update copyright notices to 2024

Change-Id: I6e6d6adbe427332634e9253b9df6d070b4e1387d
diff --git a/jjb/templates/sync-dir.yaml b/jjb/templates/sync-dir.yaml
index 03030a6..377d9a8 100644
--- a/jjb/templates/sync-dir.yaml
+++ b/jjb/templates/sync-dir.yaml
@@ -1,5 +1,5 @@
 ---
-# SPDX-FileCopyrightText: 2020 Open Networking Foundation <info@opennetworking.org>
+# SPDX-FileCopyrightText: 2020-2024 Open Networking Foundation (ONF) and the ONF Contributors
 # SPDX-License-Identifier: Apache-2.0
 
 # sync built directory to a remote server