pytest play games with logging output [1].

  [1]: pytest-dev/pytest#5502

But this does not actually affect ClickHouse tests, the only reason is
that the kazoo client is not stopped correctly without calling
kazoo.client.KazooClient.stop(), and that's why you can see the
following messages:

<details>

    test_storage_rabbitmq/test.py::test_rabbitmq_big_message --- Logging error ---
    Traceback (most recent call last):
      File "/usr/local/lib/python3.8/dist-packages/kazoo/protocol/connection.py", line 179, in _socket_error_handling
        yield
      File "/usr/local/lib/python3.8/dist-packages/kazoo/protocol/connection.py", line 659, in _connect
        self._socket = self.handler.create_connection(
      File "/usr/local/lib/python3.8/dist-packages/kazoo/handlers/threading.py", line 178, in create_connection
        return utils.create_tcp_connection(socket, *args, **kwargs)
      File "/usr/local/lib/python3.8/dist-packages/kazoo/handlers/utils.py", line 265, in create_tcp_connection
        sock = module.create_connection(address, timeout_at)
      File "/usr/lib/python3.8/socket.py", line 808, in create_connection
        raise err
      File "/usr/lib/python3.8/socket.py", line 796, in create_connection
        sock.connect(sa)
    socket.timeout: timed out

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "/usr/local/lib/python3.8/dist-packages/kazoo/protocol/connection.py", line 579, in _connect_attempt
        read_timeout, connect_timeout = self._connect(host, hostip, port)
      File "/usr/local/lib/python3.8/dist-packages/kazoo/protocol/connection.py", line 659, in _connect
        self._socket = self.handler.create_connection(
      File "/usr/lib/python3.8/contextlib.py", line 131, in __exit__
        self.gen.throw(type, value, traceback)
      File "/usr/local/lib/python3.8/dist-packages/kazoo/protocol/connection.py", line 182, in _socket_error_handling
        raise ConnectionDropped("socket connection error: %s" % (err,))
    kazoo.exceptions.ConnectionDropped: socket connection error: None

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "/usr/lib/python3.8/logging/__init__.py", line 1088, in emit
        stream.write(msg + self.terminator)
    ValueError: I/O operation on closed file.
    Call stack:
      File "/usr/lib/python3.8/threading.py", line 890, in _bootstrap
        self._bootstrap_inner()
      File "/usr/lib/python3.8/threading.py", line 932, in _bootstrap_inner
        self.run()
      File "/usr/lib/python3.8/threading.py", line 870, in run
        self._target(*self._args, **self._kwargs)
      File "/usr/local/lib/python3.8/dist-packages/kazoo/protocol/connection.py", line 512, in zk_loop
        if retry(self._connect_loop, retry) is STOP_CONNECTING:
      File "/usr/local/lib/python3.8/dist-packages/kazoo/retry.py", line 126, in __call__
        return func(*args, **kwargs)
      File "/usr/local/lib/python3.8/dist-packages/kazoo/protocol/connection.py", line 552, in _connect_loop
        status = self._connect_attempt(host, hostip, port, retry)
      File "/usr/local/lib/python3.8/dist-packages/kazoo/protocol/connection.py", line 622, in _connect_attempt
        self.logger.warning('Connection dropped: %s', e)
    Message: 'Connection dropped: %s'
    Arguments: (ConnectionDropped('socket connection error: None'),)

</details>

Which eventually leads to incorrectly parsed report.

This patch is an addition to the `logging.raiseExceptions=False` - ClickHouse#44618

Signed-off-by: Azat Khuzhin <[email protected]>