Add garbage collection

[cornedor]

🚀 Feature Proposal

Add an option to garbage collect artifacts that are older.

Motivation

The storage size can increase quickly, but never decreases.

Example

Add an environment variable where you can define the max size of the combined artifacts.
Start removing artifacts when the max size is exceeded.

[fox1t]

Ok, so regardless of the underlying storage option, should we support this at the server level? Can you explain better how this is supposed to work, so we can better understand how to implement it.