p2p: adds debug logs for metric issue

[corverroos]

Adds debug logs to identify invalid p2p_peer_connection_types metric values.

category: bug
ticket: #1790

[codecov]

Codecov Report

Base: 55.01% // Head: 54.95% // Decreases project coverage by -0.06% ⚠️

Coverage data is based on head (451962e) compared to base (f6e660f).
Patch coverage: 0.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1791      +/-   ##
==========================================
- Coverage   55.01%   54.95%   -0.06%     
==========================================
  Files         167      167              
  Lines       22005    22024      +19     
==========================================
- Hits        12106    12104       -2     
- Misses       8336     8357      +21     
  Partials     1563     1563              

Impacted Files	Coverage Δ
p2p/p2p.go	17.27% <0.00%> (-1.91%)	⬇️
app/vmock.go	74.09% <0.00%> (-2.08%)	⬇️
app/app.go	60.16% <0.00%> (-0.65%)	⬇️
app/eth2wrap/synthproposer.go	66.35% <0.00%> (+0.31%)	⬆️
core/scheduler/scheduler.go	77.34% <0.00%> (+1.14%)	⬆️

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