Update Helm release postgresql to v12 - autoclosed

This MR contains the following updates:

Package	Update	Change
postgresql (source)	major	^11.0.0 -> ^12.0.0

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Chart.yaml

@@ -24,7 +24,7 @@ appVersion: "2021.06"
 
 dependencies:
 - name: postgresql
-  version: "^11.0.0"
+  version: "^12.0.0"
   repository: "https://charts.bitnami.com/bitnami"
   condition: postgresql.enabled
 - name: redis