chore: Check whether test failures are caused by port exhaustion

[bthomee]

High Level Overview of Change

This change adds an extra step to the CI test job that outputs network info.

Context of Change

We suspect random test failures are being caused by port exhaustion on the GitHub runners when many jobs are being run at the same time.

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Refactor (non-breaking change that only restructures code)
• Performance (increase or change in throughput and/or latency)
• Tests (you added tests for code that already exists, or your new feature included in this PR)
• Documentation update
• Chore (no impact to binary, e.g. .gitignore, formatting, dropping support for older tooling)
• Release

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.5%. Comparing base (e192ffe) to head (73edf8a).

Additional details and impacted files

@@           Coverage Diff           @@
##           develop   #5938   +/-   ##
=======================================
  Coverage     78.5%   78.5%           
=======================================
  Files          817     817           
  Lines        69017   69017           
  Branches      8276    8270    -6     
=======================================
+ Hits         54197   54207   +10     
+ Misses       14820   14810   -10     

see 6 files with indirect coverage changes

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