Update changelog for razor insertion (#7228)

Author: Andrew Hall

CHANGELOG.md

@@ -15,6 +15,10 @@
   * Fixes AutoInsert in MAUI
   * Support GUID properties when parsing XAML
   * Improve support for x:DataType in MAUI
+* Update Razor to 9.0.0-preview.24311.4 (PR: [#7225](https://github.com/dotnet/vscode-csharp/pull/7225))
+  * Fix Parsing regression from 8.0.205, commas after @ character
+  * Improve diagnostic reliability for js/ts
+  * Fix tooling for projects that don't use the razor sdk
 
 # 2.34.10
 * Update Roslyn to 4.11.0-3.24307.2 (PR: [#7211](https://github.com/dotnet/vscode-csharp/pull/7211))