fix(helm-chart): update helm release ext-postgres-operator to 1.2.5

| datasource | package               | from  | to    |
| ---------- | --------------------- | ----- | ----- |
| helm       | ext-postgres-operator | 1.2.4 | 1.2.5 |

kubernetes/apps/databases/ext-postgres-operator/app/helmrelease.yaml

@@ -9,7 +9,7 @@ spec:
   chart:
     spec:
       chart: ext-postgres-operator
-      version: 1.2.4
+      version: 1.2.5
       sourceRef:
         kind: HelmRepository
         name: ext-postgres-operator