Turn off store archiving to hotfix memory duplication issue

[emilk]

Maybe we need both that and:

• Upgrade arrow2/convert and use native buffers for the tensor u8 types #1375

[emilk]

The way to accomplish this is to set

DataStoreConfig {
    component_bucket_size_bytes: u64::MAX,
    component_bucket_nb_rows: u64::MAX,
    …
}

I've tested it, and it does indeed solve the memory duplication.

However, according to the docs, it also stops the GC from doing anything, which means memory pruning won't work.

However, considering our memory pruning is already crashing, maybe it doesn't matter for the time beeing:

• Crash on memory pruning #1414

[emilk]

No - we want memory pruning

[teh-cmc]

This turned out to be the right strategy in the end.

It need not break garbage collection: we can disable archiving without necessarily breaking the bucketing system.