feat: update go-ipld-format and boxo to remove globals

[aschmahmann]

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[aschmahmann]

Note: need released versions

[aschmahmann]

Unclear that this is used for anything in this repo. Is there anything I'm missing here?

[hsanjuan]

Well it seems it is not really needed. Perhaps it was needed once upon a time, or I just feared the NodeGetter wouldn't be able to parse anything. (I suspect this codec may be registered by default somewhere else?).

[aschmahmann]

it used to be registered by go-merkledag, although I'm not sure it's even needed here anymore

[hsanjuan]

LGTM, pending bubbling etc.