Errors when backup and restore keycloak database

Problem

================================================================================
Backup Keycloak's PostgreSQL database
================================================================================

error: the path "keycloak-backup-pvc.yaml" does not exist
error: the path "keycloak-credentials.yaml" does not exist
error: the path "keycloak-backup-cronjob.yaml" does not exist
Error from server (NotFound): cronjobs.batch "backup-keycloak-schedule" not found
Error from server (NotFound): jobs.batch "keycloak-backup" not found
Error from server (NotFound): jobs.batch "keycloak-backup" not found
error: the path "keycloak-backup-cronjob.yaml" does not exist

Reason

keycloak resources ar now in install/infra/keycloak directory