[Bugfix] Fix FusedMoEWithLoRA has no attribute runner (#41889)

Signed-off-by: Jee Jee Li <jeejeelee@inferact.ai>

vllm/lora/layers/fused_moe.py

@@ -335,6 +335,10 @@ class FusedMoEWithLoRA(BaseLayerWithLoRA):
     def quant_method(self):
         return self.base_layer.quant_method
 
+    @property
+    def runner(self):
+        return self.base_layer.runner
+
     @property
     def is_internal_router(self) -> bool:
         return self.base_layer.is_internal_router