Make sure browsers will display updated favicon

src/packager/template.ejs

@@ -3,6 +3,7 @@
   <head>
     <meta charset="utf8">
     <meta name="viewport" content="width=device-width, initial-scale=1">
+    <link rel="shortcut icon" href="/favicon.ico?v=2" />
     <title>TurboWarp Packager</title>
     <style>
       @media (prefers-color-scheme: dark) {