Replace Timeout.timeout in Net:HTTP#connect

[mohamedhafez]

Use socket timeout option instead.
See #6 for discussion

[mohamedhafez]

Tests are already passing on Ruby 2.6 and 2.7, once #8 gets merged the 3.0 tests pass as well (i tested it locally to be sure).

[carlhoerberg]

You need to introduce a resolv_timeout, see https://bugs.ruby-lang.org/issues/16381 and ruby/ruby#1806

[mohamedhafez]

@carlhoerberg agreed, but I think I'd like to get this PR accepted first and then follow up with another for adding an option for a :resolv_timeout. Or feel free to make ruby/ruby#1806 against this repo and I can take this PR down, to be honest until we hear from the maintainers I'm just worried this will be ignored and am hesitant to put any more effort into it.

[mohamedhafez]

All the tests are passing now that #8 got merged:)

[deivid-rodriguez]

This changes seems a very good move to me!

[PhilCoggins]

When is this change expected to make it into Ruby stdlib? Ruby 3.0.1 and 3.0.2 were released since this PR has been merged but there hasn't been a new tagged release that includes this change, and it looks like those versions are still using 0.1.1. I may patch this in my Rails app, but would prefer to see it adopted into a core Ruby 😃. Forgive my ignorance, I don't understand the process of how stdlib updates are included in base Ruby install.