Revise CHANGELOG for version 0.58.5

Updated the release date for version 0.58.5 and removed the added feature entry.

Author: chagong

CHANGELOG.md

@@ -4,10 +4,7 @@ All notable changes to the "vscode-java-debugger" extension will be documented i
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## 0.58.5 - 2025-12-17
-### Added
-- Support custom debug java agent. [#1593](https://github.com/microsoft/vscode-java-debug/pull/1593).
-
+## 0.58.5 - 2026-01-06
 ### Fixed
 - Fix `lspFrame.source.path` is null. [java-debug#618](https://github.com/microsoft/java-debug/pull/618).