fix: Update analytics script URL to use HTTPS

Author: haxgun

index.html

@@ -53,7 +53,7 @@
         />
         <script
             defer
-            src="http://valory-umami-6678cf-89-169-55-150.traefik.me/script.js"
+            src="https://umami.valory.su/script.js"
             data-website-id="48d6b6aa-7f88-4264-b1a0-1fa5c7d51a75"
         ></script>
     </head>