Fix: Implement backup_to_bucket_ and delete_after_backup for aws-s3 polling mode#49734

MichaelKatsoulis wants to merge 1 commit intoelastic:mainelastic/beats:mainfrom

MichaelKatsoulis:fix/s3-poller-backup-deleteMichaelKatsoulis/beats:fix/s3-poller-backup-deleteCopy head branch name to clipboard