docs: updated download urls

docs/pages/installing.md

@@ -37,23 +37,23 @@ const { setupCache } = require('axios-cache-interceptor/umd');
 ## With CDN
 
 ```html
-<!-- Development build (~12.4 KiB) -->
+<!-- Development build for ES2020+ (~11.3 KiB) -->
 <script
-  src="https://cdn.jsdelivr.net/npm/[email protected].5/umd/dev.js"
-  integrity="sha256-xIjKHhIfSz8UWokNvc19uUpKpgyScXiT6IODLPEPKlA="
+  src="https://cdn.jsdelivr.net/npm/[email protected].8/umd/dev.js"
+  integrity="sha256-SZVzXptEUxn+mOVIPQPJRnGFmFV+/8prfTx2pMyrbeM="
   crossorigin="anonymous"
 ></script>
 
-<!-- Production for ES6+ (~10.4 KiB) -->
+<!-- Production for ES2017+ (~9.85 KiB) -->
 <script
-  src="https://cdn.jsdelivr.net/npm/[email protected].5/umd/index.js"
-  integrity="sha256-qhS8QSRF2iNnqxtAwe4NJ5v/kcxYsLvD0Jf3ss2iLpk="
+  src="https://cdn.jsdelivr.net/npm/[email protected].8/umd/index.js"
+  integrity="sha256-FUDdb76oASr8kl/6iiNlz+W0yLLcmyS4L/+CGNWKTfo="
   crossorigin="anonymous"
 ></script>
 
 <!-- Production for ES5+ (~13.9 KiB) (Needs Promise polyfill) -->
 <script
-  src="https://cdn.jsdelivr.net/npm/[email protected].5/umd/es5.js"
+  src="https://cdn.jsdelivr.net/npm/[email protected].8/umd/es5.js"
   integrity="sha256-EzMv9XzLARcJMVDg0UrCT3r3+sMgnSriAI/nK1opXTI="
   crossorigin="anonymous"
 ></script>
@@ -69,10 +69,10 @@ You can import any [CDN Url](#with-cdns) and use it in your code. **UMD Compatib
 
 ```js
 // ESM with Skypack CDN
-import { setupCache } from 'https://cdn.skypack.dev/[email protected].5';
+import { setupCache } from 'https://cdn.skypack.dev/[email protected].8';
 
 // UMD with JSDeliver CDN
-import { setupCache } from 'https://cdn.jsdelivr.net/npm/[email protected].5/umd/index.js';
+import { setupCache } from 'https://cdn.jsdelivr.net/npm/[email protected].8/umd/index.js';
 ```
 
 ## Official support table