[VOL-5020] Update helm charts for repo:voltha-tracing

voltha-tracing/templates/_helpers.tpl
voltha-tracing/templates/jaeger-deploy.yaml
voltha-tracing/templates/tracing-agent-svc.yaml
voltha-tracing/templates/tracing-gui-svc.yaml
voltha-tracing/values.yaml
voltha/templates/_helpers.tpl
voltha/templates/api-svc.yaml
voltha/templates/core-deploy.yaml
voltha/templates/core-profile-svc.yaml
voltha/templates/core-svc.yaml
voltha/templates/ingress.yaml
voltha/templates/ofagent-deploy.yaml
voltha/templates/ofagent-profile-svc.yaml
-----------------------------------------
  o Update copyright notice ending date.

voltha-tracing/Chart.yaml
voltha-infra/Chart.yaml
-----------------------
  o Update voltha-tracing chart version to 2.12.1

voltha-stack/Chart.yaml
-----------------------
  o Update dependent voltha chart version to v2.12.15

voltha/Chart.yaml
-----------------
  o Increment as a dependency induced by indirect chart deps
    voltha-infra/Chart.yaml and voltha-stack/Chart.yaml.

Change-Id: I12e25e0348b320176ab8a409cc64c00f428f1aec
diff --git a/voltha-tracing/templates/jaeger-deploy.yaml b/voltha-tracing/templates/jaeger-deploy.yaml
index 75ae9ab..01c9a5b 100644
--- a/voltha-tracing/templates/jaeger-deploy.yaml
+++ b/voltha-tracing/templates/jaeger-deploy.yaml
@@ -1,4 +1,4 @@
-# Copyright 2020-2023 Open Networking Foundation (ONF) and the ONF Contributors
+# Copyright 2020-2024 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.