Update CHANGELOG for release v3.8.3-patch.3 (#3206)

Co-authored-by: withchao <48119764+withchao@users.noreply.github.com>
Co-authored-by: Monet Lee <monet_lee@163.com>

CHANGELOG/CHANGELOG-3.8.md

@@ -1,3 +1,18 @@
+## [v3.8.3-patch.3](https://github.com/openimsdk/open-im-server/releases/tag/v3.8.3-patch.3) 	(2025-03-07)
+
+### New Features
+* feat: optimizing BatchGetIncrementalGroupMember #3180
+
+### Bug Fixes
+* fix: solve uncorrect notification when set group info #3172
+* fix: the sorting is wrong after canceling the administrator in group settings #3185
+* fix: solve uncorrect GroupMember enter group notification type. #3188
+
+### Refactors
+* refactor: change sendNotification to sendMessage to avoid ambiguity regarding message sending behavior. #3173
+
+**Full Changelog**: [v3.8.3-patch.2...v3.8.3-patch.3](https://github.com/openimsdk/open-im-server/compare/v3.8.3-patch.2...v3.8.3-patch.3)
+
 ## [v3.8.3-patch.2](https://github.com/openimsdk/open-im-server/releases/tag/v3.8.3-patch.2) 	(2025-02-28)
 
 ### Bug Fixes