chore(update): updated changelog.md

CHANGELOG.md

@@ -28,6 +28,22 @@ The changelog format is based on [Keep a Changelog](https://keepachangelog.com/e
 
 ## [Unreleased]
 
+### Updated
+- Refactored workflows where required
+- Moved frontend source files into dpp-frontend directory
+- Made data-service chart independent from the edc-provider chart
+- Renamed Keycloak to IAM
+- Re-organized data-consumer and data-provider artifacts
+- Re-organized directory strcuture for docs and deployment folders
+- Updated documentation references where required
+- Updated infrastructure guide
+
+### Deleted
+- Deleted unused files/directories/docs/images
+    - Removed environment-specific values files from helm charts
+    - Removed docker directory
+
+
 ## [released]
 ## [v2.2.0] - 26-03-2024
 
@@ -786,4 +802,4 @@ The changelog format is based on [Keep a Changelog](https://keepachangelog.com/e
 ### Updated
 - Optimized the reponsive from the application
 - Optimized the passport display
-- Updated components with Vuetify 3, making the application more stable.
+- Updated components with Vuetify 3, making the application more stable.