update changelog for version 1.1.0

Author: mrgrauel

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 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).
 
-## [unreleased]
+## [1.1.0] - 2023-05-23
 
 ### Changed
 * Switch token request to POST method #APPS-839