network: treat unsolicited addr commands as errors

[roman-khimov]

See neo-project/neo#2097.

[codecov]

Codecov Report

Merging #1562 (2ce3c8b) into master (619b6d4) will decrease coverage by 0.01%.
The diff coverage is 28.57%.

@@            Coverage Diff             @@
##           master    #1562      +/-   ##
==========================================
- Coverage   77.51%   77.49%   -0.02%     
==========================================
  Files         230      230              
  Lines       18353    18360       +7     
==========================================
+ Hits        14226    14228       +2     
- Misses       3114     3119       +5     
  Partials     1013     1013              

Impacted Files	Coverage Δ
pkg/network/tcp_peer.go	29.55% <0.00%> (-0.45%)	⬇️
pkg/network/server.go	38.85% <50.00%> (+0.08%)	⬆️

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