[Changelog CI] Add Changelog for Version v0.4.0

Author: github-actions[bot]

CHANGELOG.md

@@ -1,3 +1,16 @@
+# Version: v0.4.0
+
+* [#44](https://github.com/SAP/STARS/pull/44): Add Garak tool
+* [#72](https://github.com/SAP/STARS/pull/72): Bump deprecated from 1.2.15 to 1.2.18 in /backend-agent
+* [#73](https://github.com/SAP/STARS/pull/73): Bump python-dotenv from 1.0.1 to 1.1.1 in /backend-agent
+* [#74](https://github.com/SAP/STARS/pull/74): Bump flask from 2.3.3 to 3.1.1 in /backend-agent
+* [#77](https://github.com/SAP/STARS/pull/77): Bump ollama from 0.4.7 to 0.5.3 in /backend-agent
+* [#78](https://github.com/SAP/STARS/pull/78): Bump the js-dependencies group across 1 directory with 25 updates
+* [#79](https://github.com/SAP/STARS/pull/79): Update faiss-cpu requirement from ~=1.9.0 to ~=1.12.0 in /backend-agent
+* [#80](https://github.com/SAP/STARS/pull/80): Bump actions/checkout from 4 to 5
+* [#81](https://github.com/SAP/STARS/pull/81): Bump mermaid from 11.4.1 to 11.10.0 in /frontend
+
+
 # Version: v0.3.1
 
 * [#50](https://github.com/SAP/STARS/pull/50): Bump webpack-dev-server and @angular-devkit/build-angular in /frontend