Socks5 support

[bretambrose]

Adds SOCKS5 proxy support to HTTP connection establishment

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 47.61905% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.93%. Comparing base (1d907ce) to head (d7c3687).

Files with missing lines	Patch %	Lines
source/connection_manager.c	50.00%	7 Missing ⚠️
source/connection.c	50.00%	2 Missing ⚠️
source/websocket_bootstrap.c	33.33%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #585      +/-   ##
==========================================
+ Coverage   79.84%   79.93%   +0.09%     
==========================================
  Files          28       28              
  Lines       12082    12092      +10     
==========================================
+ Hits         9647     9666      +19     
+ Misses       2435     2426       -9     

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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.