Enable TorchAO int4wo quantization tests on XPU #38229

Job	Run time
check_code_quality	33s
check_repository_consistency	25s
LoRA tests with PEFT main	6m 23s
Hub tests for models, schedulers, and pipelines	2m 50s
Fast PyTorch Pipeline CPU tests	15m 23s
PyTorch Example CPU tests	20m 12s
Fast PyTorch Models & Schedulers CPU tests	9m 13s
	54m 59s

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