Remove code examples for Python 3.8 in `debugging`

docs/en/docs/tutorial/debugging.md

@@ -6,7 +6,7 @@ You can connect the debugger in your editor, for example with Visual Studio Code
 
 In your FastAPI application, import and run `uvicorn` directly:
 
-{* ../../docs_src/debugging/tutorial001.py hl[1,15] *}
+{* ../../docs_src/debugging/tutorial001_py39.py hl[1,15] *}
 
 ### About `__name__ == "__main__"` { #about-name-main }