Table curl is not using proxy_hostname configuration

[lucasmrod]

Bug report

The table curl is not using the proxy_hostname configuration.

What operating system and version are you using?

Platform agnostic.

What version of osquery are you using?

5.12.2

What steps did you take to reproduce the issue?

Configure host with --proxy_hostname and query the curl table.

What did you expect to see?

I would expect curl to use the configured HTTP proxy to make its HTTPS requests.

What did you see instead?

The requests are not using the proxy configuration.

More information

Solutions I can think of:
A. The fix should be simple (moving the setting of the proxy from TLSTransport::getInternalOptions to TLSTransport::getOptions).
B. Alternative solution, considering some comments in #6034: add a column to curl table to specify whether to use the proxy or not.