Fix mask token

tokenizer_config.json

@@ -2055,11 +2055,15 @@
   "eos_token": "<|end_of_text|>",
   "extra_special_tokens": {},
   "mask_token": "<|mask|>",
+  "max_length": 512,
   "model_input_names": [
     "input_ids",
     "attention_mask"
   ],
   "model_max_length": 131072,
+  "pad_to_multiple_of": null,
   "pad_token": "<|end_of_text|>",
+  "pad_token_type_id": 0,
+  "padding_side": "right",
   "tokenizer_class": "PreTrainedTokenizer"
 }