updated the changelog (#104)

Co-authored-by: Benjamin SPETH <bspeth@ecovadis.com>

Author: benspeth

docs/CHANGELOG.md

@@ -4,9 +4,13 @@ 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).
 
-## 5.4.0
+## 5.5.0
 - Added
     - Introduced a new way to connect to Service Bus using Azure Entra authentication.
+
+## 5.4.0
+- Added Isolation feature V2
+
 ## 5.3.1
 - Changed
   - Fix usage of sent counter on receiver instead of received counter