adjustments too pg-cluster config for backup rotation

templates/cm_postgres_bkp.yaml

@@ -9,7 +9,7 @@ data:
   AWS_ENDPOINT: {{ .Values.postgres_bkp.bkp_url }}
   AWS_REGION: ""
   AWS_S3_FORCE_PATH_STYLE: "true" # needed for MinIO
-  BACKUP_NUM_TO_RETAIN: "7"
+  BACKUP_NUM_TO_RETAIN: "6"
   BACKUP_SCHEDULE: "00 2 * * *"
   CLONE_USE_WALG_RESTORE: "true"
   USE_WALG_BACKUP: "true"
@@ -18,4 +18,4 @@ data:
   WAL_S3_BUCKET: postgres
   WAL_BUCKET_SCOPE_PREFIX: ""
   WAL_BUCKET_SCOPE_SUFFIX: ""
-  CRONTAB: "['* * * * * /nso_scripts/backup-monitoring.sh','30 2 * * * /scripts/backup_retry.sh']"
+  CRONTAB: "['* * * * * /nso_scripts/backup-monitoring.sh']"