fix(rpc): return error if peer cant be connected

[alrevuelta]

Closes #1469

Summary:

• When trying to connect to a i) peer not listening or ii) malformed multiaddress via the RPC, the api was returning result:true which is missleading since no connection was made.
• Moreover connectToNodes was used with a timeout but dialPeer already has a timeout. And note that connectToNodes discards the dialing result, so we can't know if the connection failed.
• This PR uses dialPeer instead and raises an exception if we can't connect to the peer and adds a unit test for the bug it fixes.
• Relevant for wakurtosis testing efforts.

[status-im-auto]

Jenkins Builds

❔	Commit	#️⃣	Finished (UTC)	Duration	Platform	Result
❌	c2af5b5	#1	2023-01-04 23:02:56	~15 min	macos	📄log
❌	c2af5b5	#2	2023-01-09 12:19:38	~2 min	macos	📄log
❌	c2af5b5	#3	2023-01-09 13:15:38	~2 min	macos	📄log

[LNSD]

LGTM ✅

[jm-clius]

Thanks!