Update the supported user roles in Console

Update the page https://docs.camunda.io/docs/next/components/console/manage-organization/manage-users/#roles-and-permissions

New roles that are supported on 8.8+ clusters:

<img width="710" height="240" alt="Image" src="https://github.com/user-attachments/assets/ed61b2ac-964a-40bf-a192-1a3f79079d7e" />

Old roles are still supported for <=8.7 clusters.