Too many health check messages in the log

[yongfengdu]

See opea-project/GenAIInfra#469
It turns out it's the uvicorn access message, which should be filter out by sth like this:
logging.getLogger("uvicorn.access").addFilter(lambda record: "/v1/health_check" not in record.getMessage())

Or provide a way to set the log level higher than INFO