Test suite: Try fixing flaky step "all notifications have disappeared"
Getting a Dogtail Node for gnome-shell repeatedly failed in test suite runs. Lets see if retrying it for 30 seconds fixes the flakiness.
Closes #20263
Getting a Dogtail Node for gnome-shell repeatedly failed in test suite runs. Lets see if retrying it for 30 seconds fixes the flakiness.
Closes #20263