vocab size update in tokenizer_config.json

tokenizer_config.json

@@ -237,5 +237,5 @@
   "pad_token": "<|end_of_text|>",
   "tokenizer_class": "GPT2Tokenizer",
   "unk_token": "<|end_of_text|>",
-  "vocab_size": 49152
+  "vocab_size": 49160
 }