Bump Helm app version to 4.0.2 (#20697)

* Bump Helm app version to 4.0.1

* Bump Helm app version to 4.0.1

chart/Chart.yaml

@@ -20,7 +20,7 @@ version: 2.3.0
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.
-appVersion: v3.5.3
+appVersion: v4.0.2
 
 dependencies:
   - name: elasticsearch