build: update dependency highlight.js to v11.9.0 (#1514)

Co-authored-by: Renovate Bot <[email protected]>

Author: splincode

apps/flex-layout-demo/index.html

@@ -4,10 +4,10 @@
         <meta charset="utf-8" />
         <title>Demo</title>
         <base href="./" />
-        <script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/11.8.0/highlight.min.js"></script>
+        <script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/highlight.min.js"></script>
         <link
             rel="stylesheet"
-            href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/11.8.0/styles/github.min.css"
+            href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/github.min.css"
         />
         <meta
             name="viewport"

apps/virtual-table-demo/index.html

@@ -13,10 +13,10 @@
             type="image/x-icon"
             href="assets/favicon.ico"
         />
-        <script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/11.8.0/highlight.min.js"></script>
+        <script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/highlight.min.js"></script>
         <link
             rel="stylesheet"
-            href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/11.8.0/styles/github.min.css"
+            href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/github.min.css"
         />
         <link
             href="//fonts.googleapis.com/icon?family=Material+Icons"