model: fix max_position_embeddings config

config.json

@@ -9,7 +9,7 @@
   "hidden_size": 12288,
   "initializer_range": 0.02,
   "intermediate_size": 28672,
-  "max_position_embeddings": 32768,
+  "max_position_embeddings": 131072,
   "model_type": "mistral",
   "num_attention_heads": 96,
   "num_hidden_layers": 157,