update vue cdn

index.html

@@ -5,7 +5,7 @@
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>尘白禁区信源研析</title>
-  <script src="https://cdn.bootcdn.net/ajax/libs/vue/3.2.47/vue.global.prod.min.js"></script>
+  <script src="https://unpkg.com/vue@3.2.47/dist/vue.global.prod.js"></script>
   <script src="./calc.min.js"></script>
 </head>