Drive: empty the trash automatically?

Hello everyone.

I use the mailbox.org Drive to store backups and my drive storage is 5GB max. One of these backup is around 2GB, it runs automatically every week and deletes the previous versions when it does, and the deleted backups end up in the drive trash folder. The trash folder counts toward my storage limit and I have to empty it manually every so often or the automatic backup will fail due to the storage being full.

My question is: is there a way to automatically empty the trash folder for the drive/cloud storage, or disable it maybe so deleted files actually get deleted?

Thank you for your attention.