feat(core): allow indentation suppression in nested stacks

[jdebuseamazon]

Issue # (if applicable)

Closes #32798

Reason for this change

Stacks can be created with an optional suppressTemplateIndentation parameter to determine whether indentation is suppressed. This may for example be useful to keep stack sizes within AWS CloudFormation quotas. However, indentation suppression is currently not supported for nested stacks.

Description of changes

A new suppressTemplateIndentation parameter, based on the Stack suppressTemplateIndentation was added to NestedStackProps. The new parameter was added to the call to the superclass constructor within the NestedStack constructor:

  constructor(scope: Construct, id: string, props: NestedStackProps = { }) {
    const parentStack = findParentStack(scope);

    super(scope, id, {
      env: { account: parentStack.account, region: parentStack.region },
      synthesizer: new NestedStackSynthesizer(parentStack.synthesizer),
      description: props.description,
      crossRegionReferences: parentStack._crossRegionReferences,
      suppressTemplateIndentation: props.suppressTemplateIndentation,
    });

Description of how you validated changes

Unit tests and an integration test. The integration test was based on the existing integ.nested-stack-references.ts.

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

[aws-cdk-automation]

AWS CodeBuild CI Report

• CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
• Commit ID: 9437b00
• Result: SUCCEEDED
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