[App] update app testing (#16000)

Co-authored-by: thomas <[email protected]>
(cherry picked from commit 8b68e20)

Author: 2 people

src/lightning_app/testing/testing.py

@@ -488,12 +488,12 @@ def wait_for(page, callback: Callable, *args, **kwargs) -> Any:
         except (playwright._impl._api_types.Error, playwright._impl._api_types.TimeoutError) as e:
             print(e)
             try:
-                sleep(5)
+                sleep(7)
                 page.reload()
             except (playwright._impl._api_types.Error, playwright._impl._api_types.TimeoutError) as e:
                 print(e)
                 pass
-            sleep(2)
+            sleep(3)
 
 
 def _delete_lightning_app(client, project_id, app_id, app_name):

tests/tests_examples_app/public/test_boring_app.py

@@ -10,7 +10,7 @@
 
 @pytest.mark.cloud
 def test_boring_app_example_cloud() -> None:
-    with run_app_in_cloud(os.path.join(_PATH_EXAMPLES, "app_boring"), app_name="app_dynamic.py", debug=True,) as (
+    with run_app_in_cloud(os.path.join(_PATH_EXAMPLES, "app_boring"), app_name="app_dynamic.py", debug=True) as (
         _,
         view_page,
         _,