update free_encoder_mm_hashes

vllm/v1/core/sched/scheduler.py

@@ -1023,7 +1023,7 @@ class Scheduler(SchedulerInterface):
             # It contains the request IDs that are finished in between
             # the previous and the current steps.
             finished_req_ids=self.finished_req_ids,
-            free_encoder_input_ids=self.encoder_cache_manager.
+            free_encoder_mm_hashes=self.encoder_cache_manager.
             get_freed_mm_hashes(),
             structured_output_request_ids=structured_output_request_ids,
             grammar_bitmask=grammar_bitmask,