[fix](error) Avoid deadlock if task status is unexpected (#56816)

Author: Gabriel39

be/src/pipeline/pipeline_task.cpp

@@ -678,8 +678,8 @@ Status PipelineTask::finalize() {
         return Status::OK();
     }
     SCOPED_SWITCH_THREAD_MEM_TRACKER_LIMITER(fragment->get_query_ctx()->query_mem_tracker());
-    std::unique_lock<std::mutex> lc(_dependency_lock);
     RETURN_IF_ERROR(_state_transition(State::FINALIZED));
+    std::unique_lock<std::mutex> lc(_dependency_lock);
     _sink_shared_state.reset();
     _op_shared_states.clear();
     _shared_state_map.clear();