fix: add rpc error metrics

[twoeths]

Motivation

• There are rpc errors that's not tracked in metrics and it caused missed messages from other peers
• See Missed responded IWANT messages from Nimbus to Lodestar #411 (comment)

Description

• Add more logs for rpc message
• Add metrics when handling errors

part of #411

It shows that we really have rpc errors when deploying this branch to a lodestar node

[what-the-diff]

• Add error handling for peer read stream
• Add error handling for rpc data and recv errors
• Logging improvements to include more information about the RPC message received from a peer (subscriptions, messages, ihave/iwant/graft/prune)

[codecov-commenter]

Codecov Report

Patch coverage: 32.25% and project coverage change: -0.27 ⚠️

Comparison is base (1e1cf5a) 83.31% compared to head (219d2a1) 83.04%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #412      +/-   ##
==========================================
- Coverage   83.31%   83.04%   -0.27%     
==========================================
  Files          48       48              
  Lines       11800    11858      +58     
  Branches     1271     1279       +8     
==========================================
+ Hits         9831     9848      +17     
- Misses       1969     2010      +41     

Impacted Files	Coverage Δ
src/metrics.ts	20.39% <0.00%> (-0.87%)	⬇️
src/index.ts	70.39% <64.51%> (-0.07%)	⬇️

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[dapplion]

No need to re-assign

Suggested change

	ihave = rpc.control.ihave ? rpc.control.ihave.length : 0
	if (rpc.control.ihave) ihave = rpc.control.ihave.length