Webui: use service options to init Firefox driver
    
    With selenium driver 4.10 and above, the API for Firefox driver
    initialization has changed and does not use any more the
    log_path argument.
    
    The log path is now provided through a FirefoxService option
    in the webdriver initialization.
    
    Fixes: https://pagure.io/freeipa/issue/9492
    Signed-off-by: Florence Blanc-Renaud <flo@redhat.com>
    Reviewed-By: Michal Polovka <mpolovka@redhat.com>