ci: run race detector on p2p packages

[frncmx]

In #1205 we only run -race for swarm/... as Elad suggests that would be great to run -race on p2p and cmd/swarm.

Let's try and see if something breaks.

Prerequisite issues

• p2p/protocols: data race in TestAccountingSimulation #1285
• p2p/protocols: data race in TestProtocolHook #1286

[frncmx]

@justelad you suggested to extend the scope of the race detector job. I think that's a great idea now I'm trying to make tnat work.

You suggested to cover the whole p2p but after looking at it I think a lot of code we don't own there. What do you think if we run the race detector on the following packages?

• cmd/swarm/...
• p2p/{protocols,simulations,testing}/...

[acud]

that would be great @frncmx. sounds good to me 👍

[frncmx]

Covering cmd/swarm has been moved to #1301

(just to follow small incremental releases as cmd/swarm seems to take more time than expected)