feat(aws)!: Remove aws subcommand

[simar7]

Description

See discussion: #6818

Checklist

• I've read the guidelines for contributing to this repository.
• I've followed the conventions in the PR title.
• I've added tests that prove my fix is effective or that my feature works.
• I've updated the documentation with the relevant information (if needed).
• I've added usage information (if the PR introduces new options)
• I've included a "before" and "after" example to the description (if the PR is a user interface change).

[knqyf263]

Are you going to just remove the subcommand? Don't we show a hint to existing users somehow? (e.g. aquasecurity/trivy-plugin-index#8 (comment))

[simar7]

Are you going to just remove the subcommand? Don't we show a hint to existing users somehow? (e.g. aquasecurity/trivy-plugin-index#8 (comment))

Added!