OZG-7346: Use prepared helpers method

src/main/helm/templates/keycloak_crd.yaml

@@ -32,7 +32,7 @@ metadata:
 spec:
   keep_after_delete: {{ (.Values.sso).keep_after_delete | default false }}
   displayName: {{ include "app.ssoRealmDisplayName" . }}
-  bundesland: {{ (.Values.ozgcloud).bundesland }}
+  bundesland: {{ include "app.ozgcloudBundesland" . }}
   {{- with ((.Values.sso).keycloak_realm).roles }}
   realmRoles: 
 {{ toYaml . | indent 4}}