update jquery to latest

website/themes/uppy/layout/layout.ejs

@@ -97,7 +97,7 @@ if (page.series) {
         <!-- Place this tag in your head or just before your close body tag. -->
         <script async defer src="https://buttons.github.io/buttons.js"></script>
       <% } else { %>
-        <script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
+        <script src="//ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script> 
         <script src="//kvz.github.io/on-the-githubs/js/jquery.on-the-githubs.min.js"></script>
         <script type="text/javascript">
           $('.on-the-githubs').onthegithubs();