Fixes usePasswordFiles (#17773)

Signed-off-by: Rafael Rios Saavedra <rrios@vmware.com>

bitnami/postgresql/Chart.yaml

@@ -28,4 +28,4 @@ maintainers:
 name: postgresql
 sources:
   - https://github.com/bitnami/charts/tree/main/bitnami/post
-version: 12.6.6
+version: 12.6.7

bitnami/postgresql/templates/primary/statefulset.yaml

@@ -220,7 +220,7 @@ spec:
             {{- if or (eq $customUser "postgres") (empty $customUser) }}
             {{- if .Values.auth.enablePostgresUser }}
             {{- if .Values.auth.usePasswordFiles }}
-            - name: POSTGRES_POSTGRES_PASSWORD_FILE
+            - name: POSTGRES_PASSWORD_FILE
               value: {{ printf "/opt/bitnami/postgresql/secrets/%s" (include "postgresql.adminPasswordKey" .) }}
             {{- else if .Values.auth.postgresPassword }}
             - name: POSTGRES_PASSWORD