chore: update kendo script and theme version in the csp project

Author: eyupyusein

Telerik.Examples.ContentSecurityPolicy/Views/Shared/_Layout.cshtml

@@ -7,9 +7,10 @@
     <title>@ViewData["Title"] - Telerik.Examples.ContentSecurityPolicy</title>
 
     @{
-        var kendoVersion = "2023.3.1010";
+        var kendoVersion = "2025.2.520";
+        var themeVersion = "11.0.2";
     }
-    <link rel="stylesheet" href="https://kendo.cdn.telerik.com/themes/7.0.1/default/default-ocean-blue.css">
+    <link href="https://kendo.cdn.telerik.com/themes/@themeVersion/default/default-ocean-blue.css" rel="stylesheet" type="text/css" />
 
     <script src="https://code.jquery.com/jquery-3.7.0.min.js"
             integrity="sha256-2Pmvv0kuTBOenSvLm6bvfBSSHrUJ+3A7x6P5Ebd07/g="