Extend license header copyright years to 2024.

See #196

pom.xml

@@ -48,7 +48,7 @@
 			<name>Apache License, Version 2.0</name>
 			<url>https://www.apache.org/licenses/LICENSE-2.0</url>
 			<comments>
-				Copyright 2010-2023 the original author or authors.
+				Copyright 2010-2024 the original author or authors.
 
 				Licensed under the Apache License, Version 2.0 (the "License");
 				you may not use this file except in compliance with the License.