Is it possible to add support for PostgreSQL-15 and newer versions in omnipitr?

[hbxztc]

Hi depesz, We currently use omnipitr-backup-slave to backup our database for PG14 and earlier versions. However, there have been changes to the backup process in PG15 that have rendered omnipitr-backup-slave unable to function. Changes are as follows:

• Functions pg_start_backup()/pg_stop_backup() have been renamed to pg_backup_start()/pg_backup_stop()
• Remove long-deprecated exclusive backup mode. The connection calling pg_backup_start must be maintained until the end of the backup, or the backup will be automatically aborted. Is it possible for the omnipitr-backup-slave tool to execute pg_start_backup() and keep the session open until it can also execute pg_stop_backup() after the tarball is created?