Support custom max_retries

[yidafu]

I crawl a web site which network is very bad, I have to refresh 5 times or even more to get a normal response. I tried to configure retry_request_errors, but found that only retry 3 time.

kimuraframework/lib/kimurai/capybara_ext/session.rb

Line 11 in 96fe695

def visit(visit_uri, delay: config.before_request[:delay], skip_request_options: false, max_retries: 3)

It would be great to improve on Supporting custom max_retries.

[imtiazwazir]

+1