Fix connect to connect_to_playwright_server

[Migoo]

Hello,
I'm trying to use Plawright with docker as a websocker.

When passing a websocket url (eg: ws://localhost:8888/ws) there is an error when connecting to browser.

Minitest::UnexpectedError: Playwright::Error: Cannot read properties of undefined (reading 'launch')

here is how Playwright driver is added to Capybara:

Capybara.register_driver(:playwright) do |app|
  Capybara::Playwright::Driver.new(app,
                                   browser_type: :chromium,
                                   headless: false)
end

class ApplicationSystemTestCase < ActionDispatch::SystemTestCase
  driven_by(
      :playwright,
      using: :chromium,
      options: {
        playwright_server_endpoint_url: 'ws://localhost:8888/ws'
      } 
    )
end

adding ?browser=#{@browser_type} fix the issue and I'm able to use Playwright with Capybara and docker.

Thanks for helping !

[YusukeIwaki]

@Migoo Hi, thank you for your contribution! :)

capybara-playwright-driver 0.5.2 includes this fix. Please try it.

[lewispb]

This PR breaks endpoint URLs that include a query string already.

Generated URLs look like:

http://example.com/?token=xxx?browser=chromium

instead of

http://example.com/?token=xxx&browser=chromium