add rope_type:yarn

I think this should be rope_type:"yarn" and not rope_type:"original" from what i see in the sglang modeling code + the use of beta_fast and beta_slow

config.json

@@ -26,7 +26,7 @@
   "global_attn_every_n": 1,
   "model_type": "git",
   "torch_dtype": "bfloat16",
-  "rope_type": "original",
+  "rope_type": "yarn",
   "original_max_position_embeddings": 8192,
   "scaling_factor": 16.0,
   "extrapolation_factor": 1.0,