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029fb416 - [Safetensors] Make safetensors the default way of saving weights (#4235)

[Safetensors] Make safetensors the default way of saving weights (#4235) * make safetensors default * set default save method as safetensors * update tests * update to support saving safetensors * update test to account for safetensors default * update example tests to use safetensors * update example to support safetensors * update unet tests for safetensors * fix failing loader tests * fix qc issues * fix pipeline tests * fix example test --------- Co-authored-by: Dhruv Nair <dhruv.nair@gmail.com>