Add attention_bias to make TGI work

To unblock: https://github.com/huggingface/text-generation-inference/issues/1930#issuecomment-2124148048

config.json

@@ -133,5 +133,6 @@
   "torch_dtype": "bfloat16",
   "transformers_version": "4.39.3",
   "use_cache": true,
+  "attention_bias": false
   "vocab_size": 32064
 }