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

docs_src/query_params/tutorial005_py310.py

@@ -0,0 +1,9 @@
+from fastapi import FastAPI
+
+app = FastAPI()
+
+
+@app.get("/items/{item_id}")
+async def read_user_item(item_id: str, needy: str):
+    item = {"item_id": item_id, "needy": needy}
+    return item