test: add test for SO_BINDTODEVICE with TCP

[panjf2000]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.90%. Comparing base (872b71e) to head (af4a749).
Report is 1 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #652      +/-   ##
==========================================
+ Coverage   78.79%   78.90%   +0.11%     
==========================================
  Files          21       21              
  Lines        2546     2546              
==========================================
+ Hits         2006     2009       +3     
+ Misses        415      413       -2     
+ Partials      125      124       -1     

Flag	Coverage Δ
unittests	78.90% <ø> (+0.11%)	⬆️

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