context.TODO() a few places that now require a context

[MichaelMure]

Master issue: ipfs/kubo#6803

This is due to most of the data pipeline now requiring a context. There is
very few places where this context is needed but wiring a context up to there
quickly grow into a massive change that I'm not able to deal with. I used instead
context.TODO() tofix the compilation while keeping the same behavior as before.

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[rvagg]

code has changed significantly since this PR and I believe this has been solved now with contexts properly propagated all the way down