Update constants.py

tencentpretrain/utils/constants.py

 import json
 
 
-with open("/public/home/zhaoying1/work/TencentPretrain-main/models/llama_special_tokens_map.json", mode="r", encoding="utf-8") as f:
+with open("./models/llama_special_tokens_map.json", mode="r", encoding="utf-8") as f:
     special_tokens_map = json.load(f)
 
 UNK_TOKEN = special_tokens_map["unk_token"]