Update Mermaid to v9.0.1

Rolls the version of Mermaid we use forward, to match changes in: gitlab!85459 (merged).

• Before: https://docs.gitlab.com/ee/development/architecture.html#component-diagram
• After: http://eread-update-to-mermaid-v9-0-1.35.193.151.162.nip.io/ee/development/architecture.html#component-diagram

CC @sarahgerman @stanhu @pgascouvaillancourt