cli: return a more helpful error message on MAA patch failure

[msanft]

Context

The updating of the MAA policy is not done via Terraform, hence failures cannot be debugged through the Terraform logs. We only return the status code currently, which is not very helpful for users running into a failure here. The response body should inform the user about which permissions are missing, hence it should also be shown to the user.

Proposed change(s)

• Return both status code and response body in case of a policy patching failure.

Checklist

• [x] Add labels (e.g., for changelog category)
• [x] Is PR title adequate for changelog?
• [x] Link to Milestone

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Coverage report

Package	Old	New	Trend
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