got an error "Stream is not seekable", when doing S3 cleanup

[olivM]

Ubuntu 20.04.6 LTS
PHP 7.4.3
laravel/framework ^8.0
spatie/laravel-backup ^6.11

everything was working fine until last week

the backup is done correctly and uploaded to S3
the error occured only when doing cleanup

no change to the S3 bucket
none of my other spatie/backup instance have this issue ( using the same S3 credentials and bucket )

`Starting cleanup...
Cleaning backups of Lucien-Compta on disk local...
Used storage after cleanup: 0 B.
Cleaning backups of Lucien-Compta on disk s3-backup...
Cleanup failed because: Stream is not seekable.

RuntimeException

Stream is not seekable

at vendor/guzzlehttp/psr7/src/Stream.php:209
205▕ if (!isset($this->stream)) {
206▕ throw new \RuntimeException('Stream is detached');
207▕ }
208▕ if (!$this->seekable) {
➜ 209▕ throw new \RuntimeException('Stream is not seekable');
210▕ }
211▕ if (fseek($this->stream, $offset, $whence) === -1) {
212▕ throw new \RuntimeException('Unable to seek to stream position '
213▕ .$offset.' with whence '.var_export($whence, true));

+32 vendor frames
33 [internal]:0
Spatie\Backup\Commands\ListCommand::Spatie\Backup\Commands{closure}()

+17 vendor frames
51 artisan:37
Illuminate\Foundation\Console\Kernel::handle()
`