Depend on standard go-car release

[BigLep]

Currently Boost is dependenging on a custom branch of go-car:

https://github.com/filecoin-project/boost/blob/main/go.mod#L65

github.com/ipld/go-car v0.4.1-0.20220707083113-89de8134e58e
github.com/ipld/go-car/v2 v2.4.2-0.20220707083113-89de8134e58e

I believe this is for the extra functionality in ipld/go-car#290.

I'd like to get this resolved given the complications it caused when resolving GHSA-9x4h-8wgm-8xfg. The reason to prioritize this is so we maintain good operational posture for a future go-car event by reducing moving pieces.

[jacobheun]

Looking at resolving this by landing ipld/go-car#291.