Add support for gr.Request to gr.ChatInterface (#5819)
* Add support for gr.Request to gr.ChatInterface
* add changeset
* gr.ChatInterface: loose check for gr.Request
* add request test
* update test and chat_interface
* chat interface
* fix test
* formatting
* fixes
* fix examples and add test
* remove .update usage
* revert interface changes
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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>
