web: templates/layout.html: increment ?v= following range anchors fix

As usual, we must increment those version numbers when changes are made
to style.css and/or script.js. That purges the production cache.

Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>

templates/layout.html

@@ -62,7 +62,7 @@
                 <span class="poweredby">powered by <a target="_blank" href="https://github.com/bootlin/elixir">Elixir 2.2</a></span>
             </footer>
         </div>
-        <script src="/static/script.js?v=7"></script>
+        <script src="/static/script.js?v=8"></script>
         <script src="/static/dynamic-references.js?v=4"></script>
         <script src="/static/autocomplete.js" project="{{ current_project }}"></script>
     </body>