Fix Qwen2.5 Omni `SinusoidsPositionEmbedding` precision
Author: BakerBunker
Pull request: yes

# What does this PR do?

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fixes https://github.com/QwenLM/Qwen2.5-Omni/issues/271


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- diffusers: [different repo](https://github.com/huggingface/diffusers)
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