AWS cli documentation change
Summary
Migrated and updated documentation for the 'untag-resource' command from SimSpace Weaver to ACM service. Changes include service-specific parameter requirements, ARN pattern updates, tag key validation patterns, and added notes about resource type restrictions.
Security assessment
The changes adapt the command documentation for ACM service requirements but contain no references to security vulnerabilities, incidents, or fixes. Updates to ARN patterns and tag validation are standard service-specific adjustments without security implications.