[BUG]: `create-missing-principals` does not enforce role uniqueness on AWS

[nfx]

Is there an existing issue for this?

• [X] I have searched the existing issues

Current Behavior

currently we use UCX-ROLE as the default role name, but we do receive https://github.com/databrickslabs/ucx?tab=readme-ov-file#create-missing-pricipals-command-aws-only

Expected Behavior

append metastore name as the ucx role suffix

Steps To Reproduce

No response

Cloud

AWS

Operating System

macOS

Version

latest via Databricks CLI

Relevant log output

No response

[nfx]

Do not use one predefined name for anything cloud-related - see the relevant fix for locations - https://github.com/databrickslabs/ucx/commit/505fe1e9d363245f122561263dfc8bc4ae8056f9