fix test_vanilla_funetuning failure on XPU and A100 #11263
                
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make
pytest -rA tests/lora/test_lora_layers_sd.py::LoraIntegrationTests::test_vanilla_funetuningpass on XPU and A100.before this PR: XPU fail, A100 fail
after this PR: XPU pass, A100 pass
I've checked the output of 2 device, since this case's step is 2, so basically they are still noise at this timestep. But still can see perceptually similar.
@hlky , pls help review, thx. and also I changed the
test_float16_inference'sexpected_max_diffback to5e-2.