fix Chart.yaml

Author: carlosmt86

helm/defectdojo/Chart.yaml

@@ -34,6 +34,6 @@ dependencies:
 #     description: Critical bug
 annotations:
   artifacthub.io/prerelease: "true"
-  artifacthub.io/changes: ""
+  artifacthub.io/changes: |
     - kind: added
       description: Added HPA and PDB for celery worker and Django