Log propagation issue

[julianstirling]

Describe the bug
Not all logs propagate to the root logger when serving with uvicorn.

In the OpenFlexure server we fix this by doing:

log_config = copy(uvicorn.config.LOGGING_CONFIG)
log_config["loggers"]["uvicorn"]["propagate"] = True
log_config["loggers"]["uvicorn.access"]["propagate"] = True

...

uvicorn.run(
    server.app,
    host=args.host,
    port=args.port,
    log_config=log_config,
    timeout_graceful_shutdown=2,
)

Note that log_config["loggers"]["uvicorn.access"]["propagate"] = True is a bit noisy, we filter out most of them when writing log files.