Fix test_secure_ajp_connector.py failing with Python 3.6.8
    
    Some of the test data are not expected to cause a rewrite in
    the upgrade code. Those that do will set the rewrite flag.
    
    In that case there is a new server.xml to be read. This is
    handled with mock_open(). The contents can be retrieved via
    mocked_file().write.call_args but the repr() of it is:
    
    call(b'<Server port="1234" shutdown="SHUTDOWN">\n  ...')
    
    In at least Python 3.10 one can use write.call_args.args to get
    just the raw data. This does not work with Python 3.6.8 and
    returns the string 'args' instead results in a TypeError.
    
    TypeError: a bytes-like object is required, not 'str'
    
    Instead drop the args and use the data directly.
    
    For the case of x = mocked_file().write.call_args:
    
       x[0] is a tuple with the first element being the data
       x[0][0] is the raw data
    
    So use x[0][0] to get at the data instead of x.args[0]
    
    Fixes: https://pagure.io/freeipa/issue/9190
    
    Signed-off-by: Rob Crittenden <rcritten@redhat.com>
    Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>