AWS cli documentation change
Summary
Renamed and repurposed documentation from OpsWorks ECS cluster description to EC2 image usage report waiting command. Changed command parameters, descriptions, and navigation links to reflect new 'ec2 wait image-usage-report-available' functionality.
Security assessment
Added --dry-run parameter documentation which helps verify permissions before executing actions. While this is a security-related feature, there's no evidence this change addresses a specific security vulnerability.