Ensure gradio_client is backwards compatible with gradio==3.24.1

[abidlabs]

As discussed internally, some of the changes to the client were not fully backwards compatible, which broke older versions of gradio if they were using later versions of the client. This fixes that, at least for gradio==3.24.1 (I have not tested other versions of gradio).

To test:

1. Install gradio==3.24.1
2. Install the latest version of gradio_client from pypi
3. Run any Gradio app (it will not work)
4. Install gradio_client from this branch
5. It should work

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Name	Status	Preview	Updated (UTC)
gradio	✅ Ready (Inspect)	Visit Preview	Aug 2, 2023 4:51pm

[gradio-pr-bot]

🦄 change detected

This Pull Request includes changes to the following packages.

Package	Version
gradio	patch
gradio_client	patch

• Maintainers can select this checkbox to manually select packages to update.

With the following changelog entry.

Ensure gradio_client is backwards compatible with gradio==3.24.1

Maintainers or the PR author can modify the PR title to modify this entry.

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• Maintainers can change the version label to modify the version bump.
• If the bot has failed to detect any changes, or if this pull request needs to update multiple packages to different versions or requires a more comprehensive changelog entry, maintainers can update the changelog file directly.

[gradio-pr-bot]

All the demos for this PR have been deployed at https://huggingface.co/spaces/gradio-pr-deploys/pr-5061-all-demos

---

You can install the changes in this PR by running:

pip install https://gradio-builds.s3.amazonaws.com/55b00b6da2e4a7e7f2bf4b0f088e74f3eeca9d6b/gradio-3.39.0-py3-none-any.whl

[freddyaboulton]

I think we're going to do a hard pin of gradio_client in gradio requirements instead

[abidlabs]

We should do both @freddyaboulton -- make this fix to address older versions of gradio while also pinning gradio_client going forward (I'll add the pin to this PR)

[gradio-pr-bot]

🎉 Chromatic build completed!

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There are 0 failed tests to fix.

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[freddyaboulton]

Thanks @abidlabs !

[abidlabs]

Appreciate the review @freddyaboulton

[pngwn]

The hard pin needs to be updated in CI because the requirements get updated every time we make a release. i'll find that and take care of it.

[freddyaboulton]

Thanks @pngwn !

[pngwn]

#5222