fix: parse model_kwargs (#1825)

src/axolotl/utils/config/models/input/v0_4_1/__init__.py

@@ -321,6 +321,8 @@ class ModelInputConfig(BaseModel):
     )
     trust_remote_code: Optional[bool] = None
 
+    model_kwargs: Optional[Dict[str, Any]] = None
+
     @field_validator("trust_remote_code")
     @classmethod
     def hint_trust_remote_code(cls, trust_remote_code):
@@ -614,6 +616,8 @@ class AxolotlInputConfig(
     flash_attn_fuse_mlp: Optional[bool] = None
     flash_optimum: Optional[bool] = None
 
+    eager_attention: Optional[bool] = None
+
     unsloth_cross_entropy_loss: Optional[bool] = None
     unsloth_lora_mlp: Optional[bool] = None
     unsloth_lora_qkv: Optional[bool] = None