Automate Infra Server Roles Changes

### User Story
As a <role: Developer, SysAdmin, etc.>, I will use this work when I want to ...

## Description

Automate Eng is revising roles

## Related Issues

https://github.com/chef/automate/issues/5513

### Definition of Done

- new section, if needed
- updated images
- procedural documentation

### Demo Script / Repro Steps
