add workflow demo to demo spaces

[hannahblair]

adds workflow-api to the demo spaces for easier testing

[gradio-pr-bot]

🪼 branch checks and previews

•	Name	Status	URL
	Spaces	ready!	Spaces preview
	Website	ready!	Website preview
🦄	Changes	detected!	Details

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Install Gradio from this PR

pip install https://huggingface.co/buckets/gradio/pypi-previews/resolve/e49e99c02f1bbb1fdd4ae85d9f9b6fdad8e637cf/gradio-6.26.0-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@e49e99c02f1bbb1fdd4ae85d9f9b6fdad8e637cf#subdirectory=client/python"

Import Gradio JS Client from this PR via CDN

import { Client } from "https://huggingface.co/buckets/gradio/npm-previews/resolve/e49e99c02f1bbb1fdd4ae85d9f9b6fdad8e637cf/browser.js";

[gradio-pr-bot]

🦄 no changes detected

This Pull Request does not include changes to any packages.

__No changes detected. __

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[abidlabs]

Can confirm that this surfaces the demo @hannahblair:

But perhaps good to include an Inference Provider node and a ZeroGPU Space node to make it more representative of typical workflows?

[hannahblair]

good point, added!

[abidlabs]

Thanks @hannahblair!