* refactor(suites): replace selenium with go-rod
This change replaces [tebeka/selenium](https://github.com/tebeka/selenium) with [go-rod](https://github.com/go-rod/rod).
We no longer have a chromedriver/external driver dependency to utilise Selenium as we instead utilise the Chrome Dev Protocol to communicate with the browser.
Rod [documents](https://go-rod.github.io/#/why-rod) benefits of choosing the library as opposed to the available alternatives.
Add a suite for testing the PathPrefix feature implemented earlier to serve authelia under a multi-purpose domain.
Co-authored-by: Clément Michaud <clement.michaud34@gmail.com>
* Encode URL set to rd parameter.
URL encoding that parameter solves PR #476.
Some URL parameters set during redirection were magically disappearing
after the redirection due to the authentication process. By using URL encoding,
those parameters should not be stripped anymore.
* Fix integration tests.
