Update unleash chart to 6.7.2

Author: chriswk

charts/unleash/Chart.yaml

@@ -5,9 +5,9 @@ icon: https://docs.getunleash.io/img/logo.svg
 
 type: application
 
-version: 5.4.2
+version: 5.4.3
 
-appVersion: "6.6.0"
+appVersion: "6.7.2"
 
 dependencies:
   - name: postgresql