Added AWS AU support in other CLI commands

[netrajpatel]

• Added AWS AU support in other internal CLI plugins
• Updated test cases
• Replaced NA and EU with AWS-NA and AWS-EU in all internal CLI plugins

[Copilot]

Pull Request Overview

This PR adds support for AWS regions (including AWS-AU) in internal CLI plugins and updates the default regions accordingly. Key changes include updating configuration files, modifying unit and integration tests to reflect the new region names, and updating documentation and version numbers.

Reviewed Changes

Copilot reviewed 63 out of 63 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
packages/contentstack-export/test/config.json	Updated region list to include AWS-NA, AWS-EU, AWS-AU, and others
packages/contentstack-export/src/config/index.ts	Changed region key mapping from NA to AWS-NA for personalize API URL
packages/contentstack-config/test/unit/commands/region.test.ts	Updated region tests with new region names and type annotations
packages/contentstack-config/src/utils/region-handler.ts	Added AU and AWS-AU regional support and updated default region comment
packages/contentstack-config/src/utils/interactive.ts	Added AWS-AU option in interactive region selection
packages/contentstack-config/src/commands/config/set/region.ts	Adjusted region whitelist and updated error handling comments
Other files	Updated tests, README, package.json versions and configuration values

Comments suppressed due to low confidence (1)

packages/contentstack-auth/test/unit/tokens-validation.test.ts:12

• The identifier 'validEnvironemnt' appears misspelled. Consider renaming it to 'validEnvironment'.

const validEnvironemnt = '';