Hey.
For anyone also having this issue: Minio seems to mainly store the logs and therefore simply deleting the minio storage resolved this issue.
If you run on kubernetes, simply kubectl exec into the minio pod and delete the files and folders inside /storage/airbyte-dev-logs/job-logging/workspace/.
You might also want to delete files and folders inside /storage/airbyte-dev-logs/job-logging/workspace/