Remove code examples for Python 3.8 in `response_cookies`

docs/en/docs/advanced/response-cookies.md

@@ -6,7 +6,7 @@ You can declare a parameter of type `Response` in your *path operation function*
 
 And then you can set cookies in that *temporal* response object.
 
-{* ../../docs_src/response_cookies/tutorial002.py hl[1, 8:9] *}
+{* ../../docs_src/response_cookies/tutorial002_py39.py hl[1, 8:9] *}
 
 And then you can return any object you need, as you normally would (a `dict`, a database model, etc).
 
@@ -24,7 +24,7 @@ To do that, you can create a response as described in [Return a Response Directl
 
 Then set Cookies in it, and then return it:
 
-{* ../../docs_src/response_cookies/tutorial001.py hl[10:12] *}
+{* ../../docs_src/response_cookies/tutorial001_py39.py hl[10:12] *}
 
 /// tip
 

tests/test_tutorial/test_response_cookies/test_tutorial001.py

@@ -1,6 +1,6 @@
 from fastapi.testclient import TestClient
 
-from docs_src.response_cookies.tutorial001 import app
+from docs_src.response_cookies.tutorial001_py39 import app
 
 client = TestClient(app)
 

tests/test_tutorial/test_response_cookies/test_tutorial002.py

@@ -1,6 +1,6 @@
 from fastapi.testclient import TestClient
 
-from docs_src.response_cookies.tutorial002 import app
+from docs_src.response_cookies.tutorial002_py39 import app
 
 client = TestClient(app)