[VOL-5048] - Build and deploy for VOLTHA v2.12 release.

api/pom.xml
app/pom.xml
pom.xml
-----------
  o Udpate copyright notice to span 2023.
  o Update maven plugins spotbugs and findsecbugs.
  o Update sadis component to v5.11.1

Change-Id: If1a3213e35b07604e7304773c75a665d39afb3c2
diff --git a/api/pom.xml b/api/pom.xml
index 17a6d8d..35d3d70 100644
--- a/api/pom.xml
+++ b/api/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-  ~ Copyright 2016-present Open Networking Foundation
+  ~ Copyright 2016-2023 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.