extension: update changelog for 0.52.0 release

Change-Id: I3b7a4d1ebd80eba2395aaf32ef318752553a949a
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/730821
Reviewed-by: Hongxiang Jiang <[email protected]>
Commit-Queue: Madeline Kalil <[email protected]>
TryBot-Bypass: Hongxiang Jiang <[email protected]>

Author: madelinekalil

CHANGELOG.md

@@ -5,6 +5,11 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/).
 
 ## Unreleased
 
+### Untrusted code execution in 'Restricted Mode'
+To prevent accidental untrusted code execution, vscode-go no longer allows invocations of the Go CLI in untrusted workspaces.
+
+This is CVE-2025-68120.
+
 ### Changes
 
 * Added a new field, 'compilerDetails', on the 'go.editorContextMenuCommands' setting that when set to true will show the "Go: Toggle compiler optimization details" command in the context menu.