tcp dialer tests: add local address tests

[gdamore]

fixes #

Note that the above format should be used in your git commit comments.
You agree that by submitting a PR, you have read and agreed to our
contributing guidelines.

[gdamore]

Trying to increase coverage on this file.

[codecov]

Codecov Report

Attention: Patch coverage is 92.30769% with 1 line in your changes missing coverage. Please review.

Project coverage is 83.01%. Comparing base (071de8a) to head (5f7a9fe).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/platform/posix/posix_tcpdial.c	83.33%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2037      +/-   ##
==========================================
+ Coverage   82.77%   83.01%   +0.24%     
==========================================
  Files          95       95              
  Lines       23771    23766       -5     
  Branches     3068     3067       -1     
==========================================
+ Hits        19677    19730      +53     
+ Misses       4017     3957      -60     
- Partials       77       79       +2     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.