[CI Failure] Fix Plugin Tests (2 GPUs) Failure (#40083)

Signed-off-by: wang.yuqi <yuqi.wang@daocloud.io>
Co-authored-by: Michele Gazzetti <michele.gazzetti1@ibm.com>

vllm/entrypoints/pooling/pooling/protocol.py

@@ -97,6 +97,11 @@ class IOProcessorRequest(PoolingBasicRequestMixin, EncodingRequestMixin, Generic
             max_total_tokens_param="max_model_len",
         )
 
+    def to_pooling_params(self):
+        return PoolingParams(
+            task=self.task,
+        )
+
 
 class IOProcessorResponse(OpenAIBaseModel, Generic[T]):
     request_id: str | None = None