feat(cwl): enabling IA log group creation in CN and GovCloud regions

[sonal-joshi]

Reason for this change

CloudwatchLogs recently launched support for Infrequent Access Log Group Class in china and gov cloud regions. We are adding support in CDK to use this feature.

Description of changes

Added LogGroup Class attribute support in CDK for China and GovCloud regions. This feature is already launched by CWL in china and gov-cloud regions. This PR would add CDK support for the same.

Description of how you validated changes

This feature is already has integ test coverage in commercial region. We have validated the feature on service side already.

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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Your pull request must be based off of a branch in a personal account (not an organization owned account, and not the main branch). You must also have the setting enabled that allows the CDK team to push changes to your branch (this setting is enabled by default for personal accounts, and cannot be enabled for organization owned accounts). The reason for this is that our automation needs to synchronize your branch with our main after it has been approved, and we cannot do that if we cannot push to your branch.

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⚠️ The sha of the head commit of this PR conflicts with #30904. Mergify cannot evaluate rules on this PR. ⚠️

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AWS CodeBuild CI Report

• CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
• Commit ID: 917c4eb
• Result: SUCCEEDED
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