llama3 template issue

[JianbangZ]

Reminder

• I have read the README and searched the existing issues.

Reproduction

shouldn't we use following format_system for the "llama3" template?
format_system=StringFormatter(slots=[{"bos_token"}, "<|start_header_id|>system<|end_header_id|>\n\n{{content}}<|eot_id|>"])

Expected behavior

No response

System Info

No response

Others

No response

[hiyouga]

fixed