Update CHANGELOG for v1.1.60

***NO_CI***

Author: nfbot

CHANGELOG.md

@@ -2,7 +2,16 @@
 
 ## [**Changes available only in 'Preview' NuGet packages:**](https://github.com/nanoframework/System.Net.WebSockets/tree/HEAD)
 
-[Full Changelog](https://github.com/nanoframework/System.Net.WebSockets/compare/v1.1.52...HEAD)
+[Full Changelog](https://github.com/nanoframework/System.Net.WebSockets/compare/v1.1.57...HEAD)
+
+**Documentation and other chores:**
+
+- Update 1 NuGet dependencies [\#137](https://github.com/nanoframework/System.Net.WebSockets/pull/137)
+- Update 1 NuGet dependencies [\#135](https://github.com/nanoframework/System.Net.WebSockets/pull/135)
+
+## [v1.1.57](https://github.com/nanoframework/System.Net.WebSockets/tree/v1.1.57) (2023-05-19)
+
+[Full Changelog](https://github.com/nanoframework/System.Net.WebSockets/compare/v1.1.52...v1.1.57)
 
 **Implemented enhancements:**