TS-38561 Update Changelog with the bugfix

CHANGELOG.md

@@ -6,6 +6,7 @@ We use [semantic versioning](http://semver.org/):
 
 # Next Release
 - [feature] _agent_: Support overwriting the git commit inside `git.properties` files with `teamscale.timestamp` (see [docs](agent/README.md#overwriting-the-git-commit-inside-gitproperties-files-with-teamscaletimestamp))
+- [fix] _agent_: New default date format of the [git-commit-id-maven-plugin](https://github.com/git-commit-id/git-commit-id-maven-plugin) could not be parsed (see [GitHub Issue](https://github.com/cqse/teamscale-jacoco-agent/issues/464))
 
 # 33.2.0
 - [feature] _agent_: Add support for git.properties in Spring Boot 3.2