📝 Update source examples and docs from Python 3.9 to 3.10 (#14900)

docs_src/security/tutorial001_py310.py

@@ -0,0 +1,11 @@
+from fastapi import Depends, FastAPI
+from fastapi.security import OAuth2PasswordBearer
+
+app = FastAPI()
+
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")
+
+
+@app.get("/items/")
+async def read_items(token: str = Depends(oauth2_scheme)):
+    return {"token": token}