Garbage collection on minio

[zachmullen]

Add whatever we need to our deployment scripts to setup scheduled cleanups of outdated incomplete multipart uploads.

[jbeezley]

For reference, it can be done with something like

mc rm --recursive --incomplete --older-than 7d local/dkc

[brianhelba]

This is handled by sysadmin. We just need to make a request and ensure that mc is getting installed and updated.

our deployment scripts

I'm beginning to regret not going the Ansible route to set this up, since the instance is hand-configured.