Skip JS integrity checks since jsdelivr docs say they may re-minify sources as necessary, potentially resulting in different checksums

(cherry picked from commit e5b2afd765)

templates/about.html

@@ -69,7 +69,7 @@
     <p>This software is dedicated to the memory of Tom G1PJB, SK, a friend and colleague who sadly passed away around the time I started writing it in Autumn 2025. I was looking forward to showing it to you when it was done.</p>
 </div>
 
-<script src="/js/common.js?v=1781335058"></script>
+<script src="/js/common.js?v=1781811363"></script>
 <script>$(document).ready(function() { $("#nav-link-about").addClass("active"); }); <!-- highlight active page in nav --></script>
 
 {% end %}