Use custom format for postgres backup

charts/saberes/v0.1.0/templates/velero-schedule-weekdays.yaml

@@ -36,7 +36,7 @@ spec:
               command: 
                 - "/bin/bash"
                 - "-c"
-                - "PGPASSWORD=$POSTGRES_PASSWORD /opt/bitnami/postgresql/bin/pg_dump -U {{ .Values.moodle.dbUser }} -d {{ .Values.moodle.dbName }} > /bitnami/postgresql/{{ .Values.moodle.dbName }}.dump" 
+                - "PGPASSWORD=$POSTGRES_PASSWORD /opt/bitnami/postgresql/bin/pg_dump -Fc -U {{ .Values.moodle.dbUser }} -d {{ .Values.moodle.dbName }} > /bitnami/postgresql/{{ .Values.moodle.dbName }}.dump" 
               timeout: 360s
               onError: Continue
   useOwnerReferencesInBackup: false