Web UI: Increase timeouts for UI tests in Nightly PR configuration
    
    Some test suites for WebUI in Nightly PR configuration have timeouts without any reserve.
    So these tests fails randomly.
    
    Timeout values for these test was increased to {real duration} + ~30%
    
    https://pagure.io/freeipa/issue/7864
    
    Reviewed-By: Petr Vobornik <pvoborni@redhat.com>