Can't upload artifact from gui 2.3.0

[mirzak]

There are some known issues with this and it has been discussed here,

Mender-proxy/deployments unable to upload files to minio

@bakern can you please send me the logs from all your containers (or, if it makes your life easier, at least workflows-server and create-artifact-worker) when uploading a single file artifact from the UI?

@tranchitella, maybe you have more information?