Added page not found test
This test is to confirm that going to a page that doesn't exist returns a "Page not found" message.
Automation access tokens are expiring. If you do not use automation that relies on a personal, group or project access token, this message can be safely ignored.
For more information, see https://about.gitlab.com/blog/2023/10/25/access-token-lifetime-limits/
This test is to confirm that going to a page that doesn't exist returns a "Page not found" message.