feat: Be able to retrieve my stored items without using skore

[sylvaincom]

Is your feature request related to a problem? Please describe.

Suggested by @adrinjalali

Let us assume that a data scientist colleague (or myself in the past) has used skore to put some items.
As a user data scientist, there is no easy way for me to access directly the latest version of an item without using skore. I can not do extractions without installing skore.

Describe the solution you'd like

As a data scientist, I want to retrieve the latest version of an item, without using skore.

Describe alternatives you've considered, if relevant

No response

Additional context

Related to #1037

[thomass-dev]

This has to be discuss because it can have a huge impact on our persistence architecture.
There is a huge difference between:

• having a button to extract all the items in a skore-less format,
• having a persistence system that allows interoperability de facto, for instance storing all items as pickle on disk.

This last point prevents us, for example, from using a SQL-like (noSQL too) database.

[adrinjalali]

That's not really what I asked for though.

What I'd need is the last version of all artifacts of a run / latest run.

[augustebaum]

I guess this is asking about walled garden status. This would become even more of a concern if skore is integrated into a pay-for platform.

For the moment, skore is free software and the internals are decoupled well enough that we could imagine a PR implementing file-based on-disk storage (something that would implement the AbstractStorage interface).

In any case, since this is a wide-reaching discussion I'm gonna make it into a GH discussion; @adrinjalali if you don't mind opening an issue with your specific request we'd be happy to take a look