another fix for FlowMatchLCMScheduler forgotten import (#11330) #4582

Job	Run time
Setup Torch Pipelines CUDA Slow Tests Matrix	2m 6s
Torch CUDA Tests (models)	8m 21s
Torch CUDA Tests (schedulers)	4m 50s
Torch CUDA Tests (lora)	11m 11s
Torch CUDA Tests (others)	42s
Torch CUDA Tests (single_file)	7m 12s
Flax TPU Tests	3m 7s
ONNX CUDA Tests	4m 27s
Examples PyTorch CUDA tests on Ubuntu	35m 19s
PyTorch Compile CUDA tests	2m 39s
PyTorch xformers CUDA tests	5m 21s
Torch Pipelines CUDA Tests (cogvideo)	3m 57s
Torch Pipelines CUDA Tests (cogview4)	2m 52s
Torch Pipelines CUDA Tests (controlnet)	13m 46s
Torch Pipelines CUDA Tests (controlnet_flux)	3m 9s
Torch Pipelines CUDA Tests (controlnet_sd3)	3m 10s
Torch Pipelines CUDA Tests (ddpm)	2m 19s
Torch Pipelines CUDA Tests (deepfloyd_if)	5m 6s
Torch Pipelines CUDA Tests (flux)	4m 4s
Torch Pipelines CUDA Tests (hidream_image)	2m 23s
Torch Pipelines CUDA Tests (hunyuandit)	3m 52s
Torch Pipelines CUDA Tests (ip_adapters)	32s
Torch Pipelines CUDA Tests (latent_consistency_models)	1m 23s
Torch Pipelines CUDA Tests (ltx)	1m 41s
Torch Pipelines CUDA Tests (marigold)	3m 27s
Torch Pipelines CUDA Tests (pixart_alpha)	2m 40s
Torch Pipelines CUDA Tests (sana)	3m 29s
Torch Pipelines CUDA Tests (stable_diffusion)	4m 9s
Torch Pipelines CUDA Tests (stable_diffusion_2)	5m 28s
Torch Pipelines CUDA Tests (stable_diffusion_3)	3m 7s
Torch Pipelines CUDA Tests (stable_diffusion_xl)	5m 11s
Torch Pipelines CUDA Tests (stable_video_diffusion)	51s
Torch Pipelines CUDA Tests (wan)	1m 33s
	2h 43m 24s

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