decrease max position embeddings to reflect fine-tuning

config.json

@@ -13,7 +13,7 @@
   "hidden_size": 2048,
   "initializer_range": 0.02,
   "intermediate_size": 16384,
-  "max_position_embeddings": 8192,
+  "max_position_embeddings": 2048,
   "model_type": "gemma",
   "num_attention_heads": 8,
   "num_hidden_layers": 18,