CHANGELOG/v0.404.0.md from udondan/iam-floyd

CHANGELOG/v0.404.0.md

Summary

Maintainability

Test Coverage

Issues
Source
Stats

Issues

**New actions:**

- appconfig:CreateExtension
- appconfig:CreateExtensionAssociation
- appconfig:DeleteExtension
- appconfig:DeleteExtensionAssociation
- appconfig:GetExtension
- appconfig:GetExtensionAssociation
- appconfig:ListExtensionAssociations
- appconfig:ListExtensions
- appconfig:UpdateExtension
- appconfig:UpdateExtensionAssociation

**New resource types:**

- appconfig:extension
- appconfig:extensionassociation