Update copyright year to 2025 in docs CTR

Signed-off-by: Oleksandr Porunov <[email protected]>

Author: porunov

mkdocs.yml

@@ -18,7 +18,7 @@ site_name: JanusGraph
 repo_name: 'JanusGraph'
 repo_url: 'https://github.com/janusgraph/janusgraph'
 
-copyright: 'Copyright &copy; 2023 JanusGraph Authors. All rights reserved.<br> The Linux Foundation has registered trademarks and uses trademarks. For a list of<br> trademarks of The Linux Foundation, please see our <a href="https://www.linuxfoundation.org/trademark-usage">Trademark Usage</a> page.<br> Cassandra, Groovy, HBase, Hadoop, Lucene, Solr, and TinkerPop are trademarks of the Apache Software Foundation.<br> Berkeley DB and Berkeley DB Java Edition are trademarks of Oracle.'
+copyright: 'Copyright &copy; 2025 JanusGraph Authors. All rights reserved.<br> The Linux Foundation has registered trademarks and uses trademarks. For a list of<br> trademarks of The Linux Foundation, please see our <a href="https://www.linuxfoundation.org/trademark-usage">Trademark Usage</a> page.<br> Cassandra, Groovy, HBase, Hadoop, Lucene, Solr, and TinkerPop are trademarks of the Apache Software Foundation.<br> Berkeley DB and Berkeley DB Java Edition are trademarks of Oracle.'
 
 plugins:
   - search