### What problem does this PR solve?

Print configs at the RAGFlow startup phase.

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

```
2024-11-14 21:27:53,090 INFO     962231 Current configs, from /home/weilongma/Documents/development/ragflow/conf/service_conf.yaml:
2024-11-14 21:27:53,090 INFO     962231 ragflow: {'host': '0.0.0.0', 'http_port': 9380}
2024-11-14 21:27:53,090 INFO     962231 mysql: {'name': 'rag_flow', 'user': 'root', 'password': 'infini_rag_flow', 'host': 'mysql', 'port': 5455, 'max_connections': 100, 'stale_timeout': 30}
2024-11-14 21:27:53,090 INFO     962231 minio: {'user': 'rag_flow', 'password': 'infini_rag_flow', 'host': 'minio:9000'}
2024-11-14 21:27:53,090 INFO     962231 es: {'hosts': 'http://es01:1200', 'username': 'elastic', 'password': 'infini_rag_flow'}
2024-11-14 21:27:53,090 INFO     962231 redis: {'db': 1, 'password': 'infini_rag_flow', 'host': 'redis:6379'}
```

Signed-off-by: jinhai <haijin.chn@gmail.com>