Bump up the SDK version to resolve a potential build issue.

HF spaces sucks, and the builder keeps trying to reinstall dependencies over and over for no reason. There are literally no help or forum topics about this issue, so this change is effectively a complete shot in the dark.

README.md

@@ -4,7 +4,7 @@ emoji: 😊▶️
 colorFrom: blue
 colorTo: blue
 sdk: gradio
-sdk_version: 4.16.0
+sdk_version: 4.23.0
 app_file: app.py
 pinned: false
 license: agpl-3.0