Bump the copyright years

Author: bbatsov

supplemental-ui/partials/footer-content.hbs

@@ -1,5 +1,5 @@
 <footer class="footer">
-  <p>Copyright (C) 2012-2024 <a href="https://batsov.com">Bozhidar Batsov</a> and <a href="https://cider.mx">CIDER</a> contributors.</p>
+  <p>Copyright (C) 2012-2025 <a href="https://batsov.com">Bozhidar Batsov</a> and <a href="https://cider.mx">CIDER</a> contributors.</p>
   <p>Except where otherwise noted, docs.cider.mx is licensed under the <a href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution-ShareAlike 4.0 International</a> (CC BY-SA 4.0).</p>
 </footer>
 <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/@docsearch/js@alpha"></script>