Update changelog

CHANGELOG.md

 
+<a name="v3.4.0"></a>
+## [v3.4.0] - 2023-01-08
+### Add Features
+- add new layer class Server
+
+### Changes
+- remove unused code
+
+
 <a name="v3.3.0"></a>
 ## [v3.3.0] - 2023-01-07
 ### Add Features
@@ -162,6 +171,7 @@
 <a name="1.8.0"></a>
 ## 1.8.0 - 2021-08-15
 
+[v3.4.0]: https://gitlab.schukai.com/oss/libraries/javascript/monster/compare/v3.3.0...v3.4.0
 [v3.3.0]: https://gitlab.schukai.com/oss/libraries/javascript/monster/compare/v3.2.0...v3.3.0
 [v3.2.0]: https://gitlab.schukai.com/oss/libraries/javascript/monster/compare/v3.1.2...v3.2.0
 [v3.1.2]: https://gitlab.schukai.com/oss/libraries/javascript/monster/compare/v3.1.1...v3.1.2