Python 3.12 breaks backwards compatibility for logging configuration

import logging
import logging.config
import logging.handlers
import multiprocessing as mp


def main():
    config = {
        'version': 1,
        'handlers': {
            'sink': {
                'class': 'logging.handlers.QueueHandler',
                'queue': mp.get_context('spawn').Queue(),
            },
        },
        'root': {
            'handlers': ['sink'],
            'level': 'DEBUG',
        },
    }
    logging.config.dictConfig(config)


if __name__ == '__main__':
    main()

Traceback (most recent call last):
  File "/home/egor/.pyenv/versions/3.12-dev/lib/python3.12/logging/config.py", line 581, in configure
    handler = self.configure_handler(handlers[name])
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/egor/.pyenv/versions/3.12-dev/lib/python3.12/logging/config.py", line 786, in configure_handler
    raise ValueError('No handlers specified for a QueueHandler')
ValueError: No handlers specified for a QueueHandler

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/egor/workspace/personal/cimple/../test.py", line 25, in <module>
    main()
  File "/home/egor/workspace/personal/cimple/../test.py", line 21, in main
    logging.config.dictConfig(config)
  File "/home/egor/.pyenv/versions/3.12-dev/lib/python3.12/logging/config.py", line 912, in dictConfig
    dictConfigClass(config).configure()
  File "/home/egor/.pyenv/versions/3.12-dev/lib/python3.12/logging/config.py", line 588, in configure
    raise ValueError('Unable to configure handler '
ValueError: Unable to configure handler 'sink'

# python -VV
Python 3.12.0+ (heads/3.12:f108785, Nov  1 2023, 19:47:19) [GCC 13.2.1 20230801]