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

docs_src/query_params/tutorial001_py310.py

@@ -0,0 +1,10 @@
+from fastapi import FastAPI
+
+app = FastAPI()
+
+fake_items_db = [{"item_name": "Foo"}, {"item_name": "Bar"}, {"item_name": "Baz"}]
+
+
+@app.get("/items/")
+async def read_item(skip: int = 0, limit: int = 10):
+    return fake_items_db[skip : skip + limit]