Update tokenizer_config.json (#2)

- Update tokenizer_config.json (374035cbab29ade872e8a903201289ba62fa5ba4)


Co-authored-by: Tiezhen WANG <[email protected]>

tokenizer_config.json

@@ -7,6 +7,6 @@
   "model_max_length": 8192,
   "pad_token": "[PAD]",
   "sp_model_kwargs": {},
-  "tokenizer_class": "Grok1Tokenizer",
+  "tokenizer_class": "LlamaTokenizerFast",
   "unk_token": "[UNK]"
 }