Add info to changelog summary

Author: ArBridgeman

doc/changes/unreleased.md

@@ -4,6 +4,12 @@ With the refactoring of the `dependency:audit`, we use `poetry export`. For how
 be added (project-specific or globally), see the
 [poetry export documentation](https://github.com/python-poetry/poetry-plugin-export).
 
+Within the `report.yml`, the `actions/[email protected]` was upgraded to
+`v5.0.0`. This upgrade should not affect the existing functionality of the standard
+GitHub workflows from the PTB. However, there are breaking changes that affect cases
+where artifacts are downloaded by ID. For further details, please see the
+[release notes for 5.0.0](https://github.com/actions/download-artifact/releases/tag/v5.0.0).
+
 ## Feature
 
 * #469: Moved manual approval for slow tests to merge-gate.yml