fix for the qwen controlnet pipeline - wrong device can be used

[ttio2tech]

What does this PR do?

The input_ids are generated by the tokenizer and should be moved to the correct device before being passed to the text encoder. However, in current code, the tokens are moved to self.device, which, when CPU offloading is enabled, can point to the CPU. Instead, they should be moved to the device variable within that function's scope, which correctly holds the execution device (the GPU).

Fixes # (issue)

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[yiyixuxu]

thank you!

[HuggingFaceDocBuilderDev]

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