DEV-790 Reapply schedule for pgbasebackup

- decreased s3 retention time to save storage
- backups go to offsite storage additionaly for long term archiving
- blanked bucket scope pre-/suffix

templates/cm_postgres_bkp.yaml

@@ -9,10 +9,12 @@ data:
   AWS_ENDPOINT: https://s3storage-nsodev-prodwork01.smardigo.digital
   AWS_REGION: ""
   AWS_S3_FORCE_PATH_STYLE: "true" # needed for MinIO
-  BACKUP_NUM_TO_RETAIN: "14"
-  BACKUP_SCHEDULE: "*/15 * * * *"
+  BACKUP_NUM_TO_RETAIN: "7"
+  BACKUP_SCHEDULE: "* */12 * * *"
   CLONE_USE_WALG_RESTORE: "true"
   USE_WALG_BACKUP: "true"
   USE_WALG_RESTORE: "true"
   WALG_DISABLE_S3_SSE: "true"
   WAL_S3_BUCKET: postgres
+  WAL_BUCKET_SCOPE_PREFIX: ""
+  WAL_BUCKET_SCOPE_SUFFIX: ""