Add Redirect to the Correct Production Architecture Path

Why is this change being made?

Fixes links that are broken on this page (and other pages):

https://about.gitlab.com/handbook/engineering/performance/

Link should go here:

https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/

Uses a redirect for minimal changes and to keep peoples bookmarks going to the correct place

Does this MR meet the acceptance criteria?

Conformity

• Added description to this MR explaining the reasons for the proposed change, per say-why-not-just-what