Fix: StableDiffusionXLControlNetAdapterInpaintPipeline incorrectly inherited StableDiffusionLoraLoaderMixin

[Kazuki-Yoda]

What does this PR do?

Fixes the community pipeline for T2I-Adapter StableDiffusionXLControlNetAdapterInpaintPipeline implemented in pipeline_stable_diffusion_xl_controlnet_adapter_inpaint.py, which incorrectly inherited StableDiffusionLoraLoaderMixin instead of StableDiffusionXLLoraLoaderMixin, although this pipeline uses SDXL, not SD1.5.

diffusers/examples/community/pipeline_stable_diffusion_xl_controlnet_adapter_inpaint.py

Lines 302 to 304 in eef3d65

	class StableDiffusionXLControlNetAdapterInpaintPipeline(
	DiffusionPipeline, StableDiffusionMixin, FromSingleFileMixin, StableDiffusionLoraLoaderMixin
	):

On the other hand, StableDiffusionXLControlNetAdapterPipeline (also implements T2I-Adapter but for txt2img) correctly inherited StableDiffusionXLLoraLoaderMixin.

diffusers/examples/community/pipeline_stable_diffusion_xl_controlnet_adapter.py

Lines 155 to 161 in eef3d65

	class StableDiffusionXLControlNetAdapterPipeline(
	DiffusionPipeline,
	StableDiffusionMixin,
	FromSingleFileMixin,
	StableDiffusionXLLoraLoaderMixin,
	TextualInversionLoaderMixin,
	):

This bug was originally introduced by this PR #8981

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@sayakpaul, @yiyixuxu, please review it when you have time 🙏

[yiyixuxu]

thanks!

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