Issue #561: updating copyright message

Signed-off-by: blesson-james <blesson_james@Dellteam.com>

roles/k8s_manager/tasks/main.yml

@@ -1,4 +1,4 @@
-#  Copyright 2020 Dell Inc. or its subsidiaries. All Rights Reserved.
+#  Copyright 2021 Dell Inc. or its subsidiaries. All Rights Reserved.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -36,4 +36,4 @@
   register: install_helm
   until: install_helm is not failed
   retries: 20
-  tags: manager
+  tags: manager