feat(iot-alpha): support for account audit configuration

[badmintoncryer]

Issue # (if applicable)

Closes #31663.

Reason for this change

Cloudformation supports create an account audit configuration but AWS CDK doesn't support it.

Description of changes

• Define IAccountAuditConfiguration
• Define AccountAuditConfiguration class and AccountAuditConfigurationProps

I couldn't find documentation regarding the required policies for the role when executing an audit, but when enabling the audit configuration through the management console, it was set to use a "AWSIoTDeviceDefenderAudit" managed policy.
This implementation follows that same approach.

Description of how you validated changes

Add both unit and integ tests

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

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[GavinZZ]

LGTM, thanks for contributing!

[mergify]

Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

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AWS CodeBuild CI Report

• CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
• Commit ID: 19c1c93
• Result: SUCCEEDED
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[mergify]

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