update copyright year

Author: rsarm

dockerfiles/cscs-style-jh4/templates/page.html

@@ -218,7 +218,7 @@ <h1 class="modal-title" id="{{key}}-label">{{title}}</h1>
           </ul>
       </div>
       <div class="c-copyright">
-          2024 © CSCS&nbsp;|&nbsp;<a href="http://www.cscs.ch" target="_blank">www.cscs.ch</a>
+          2025 © CSCS&nbsp;|&nbsp;<a href="http://www.cscs.ch" target="_blank">www.cscs.ch</a>
       </div>
   </footer>