chore: add change log

Author: leozhao21

CHANGELOG.md

@@ -3,6 +3,18 @@ All notable changes to the "leetcode" extension will be documented in this file.
 
 Check [Keep a Changelog](http://keepachangelog.com/) for recommendations on how to structure this file.
 
+## [0.18.3]
+### Added
+- re-add cookie-based login method  [PR#969](https://github.com/LeetCode-OpenSource/vscode-leetcode/pull/969)
+
+## [0.18.2]
+### Fixed
+- fix login issue on VS Code Insiders  [PR#968](https://github.com/LeetCode-OpenSource/vscode-leetcode/pull/968)
+
+## [0.18.1]
+### Changed
+- change login way and add tracking logic option [PR#944](https://github.com/LeetCode-OpenSource/vscode-leetcode/pull/944)
+
 ## [0.18.0]
 ### Added
 - Add `star` command in shortcuts [PR#601](https://github.com/LeetCode-OpenSource/vscode-leetcode/pull/601)