Update file_utils.py

reduce GPU memory cost

Author: hexisyztem

cosyvoice/utils/file_utils.py

@@ -61,7 +61,7 @@ def convert_onnx_to_trt(trt_model, onnx_model, fp16):
     network = builder.create_network(network_flags)
     parser = trt.OnnxParser(network, logger)
     config = builder.create_builder_config()
-    config.set_memory_pool_limit(trt.MemoryPoolType.WORKSPACE, 1 << 33)  # 8GB
+    config.set_memory_pool_limit(trt.MemoryPoolType.WORKSPACE, 1 << 30)  # 1GB
     if fp16:
         config.set_flag(trt.BuilderFlag.FP16)
     profile = builder.create_optimization_profile()