Ignore network exceptions in ronin url --status

[postmodern]

If a URL cannot be requested, ignore any network exceptions and omit the URL from the output of ronin url --status.

$ ronin url --status https://does.not.exist.com/
...

ronin url: /usr/share/ruby/net/http.rb:1603:in `initialize': Failed to open TCP connection to does.not.exist.com:443 (getaddrinfo: No address associated with hostname) (Socket::ResolutionError)
	from /usr/share/ruby/net/http.rb:1603:in `open'
	from /usr/share/ruby/net/http.rb:1603:in `block in connect'
	from /usr/share/ruby/timeout.rb:186:in `block in timeout'
	from /usr/share/ruby/timeout.rb:193:in `timeout'
	from /usr/share/ruby/net/http.rb:1601:in `connect'
	from /usr/share/ruby/net/http.rb:1580:in `do_start'
	from /usr/share/ruby/net/http.rb:1569:in `start'
	from /usr/share/ruby/net/http.rb:2297:in `request'
	from /usr/local/share/gems/gems/ronin-support-1.1.0/lib/ronin/support/network/http.rb:780:in `request'
	from /usr/local/share/gems/gems/ronin-support-1.1.0/lib/ronin/support/network/http.rb:855:in `response_status'
	from /usr/local/share/gems/gems/ronin-support-1.1.0/lib/ronin/support/network/http.rb:1586:in `response_status'
	from /usr/local/share/gems/gems/ronin-support-1.1.0/lib/ronin/support/network/http/core_ext/uri/http.rb:45:in `status'
	from /usr/local/share/gems/gems/ronin-2.1.0/lib/ronin/cli/commands/url.rb:144:in `process_value'