Add api_name for ChatInterface (#10053)
* Add api_name for ChatInterface
* add changeset
* Update gradio/chat_interface.py
* Update test/test_chat_interface.py
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Co-authored-by: gradio-pr-bot <gradio-pr-bot@users.noreply.github.com>
Co-authored-by: Abubakar Abid <abubakar@huggingface.co>
