Force reverse tunnel socket to be binded to localhost

[lostystyg]

Fixes #587

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.43% ⚠️

Comparison is base (4d07910) 72.87% compared to head (7f4335f) 72.45%.
Report is 2 commits behind head on master.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #600      +/-   ##
==========================================
- Coverage   72.87%   72.45%   -0.43%     
==========================================
  Files          50       50              
  Lines        3042     3042              
==========================================
- Hits         2217     2204      -13     
- Misses        825      838      +13     

Files Changed	Coverage Δ
src/terminal/forwarding/PortForwardHandler.cpp	3.79% <ø> (+0.04%)	⬆️
src/base/TunnelUtils.cpp	93.47% <100.00%> (+0.29%)	⬆️

... and 5 files with indirect coverage changes

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[MisterTea]

@lostystyg the CI is failing. Can you try rebasing on latest master?

[MisterTea]

nevermind, it's a bad test. Thanks for the PR