feat(codebuild): add new image types

[awszhen]

Issue # (if applicable)

Closes #32978.

Reason for this change

The CodeBuild CDK code needs to add new image types to match newly supported environment types: LINUX_EC2, ARM_EC2 and WINDOWS_EC2.

Description of changes

Add new image types LINUX_EC2, ARM_EC2 and WINDOWS_EC2 into file.

Description of how you validated changes

Tests has been added. I ensured that the CDK was able to build, and that the output CloudFormation stack had the correct resources.

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]

The pull request linter fails with the following errors:

❌ Features must contain a change to an integration test file and the resulting snapshot.

If you believe this pull request should receive an exemption, please comment and provide a justification. A comment requesting an exemption should contain the text Exemption Request. Additionally, if clarification is needed, add Clarification Request to a comment.

[aws-cdk-automation]

The pull request linter fails with the following errors:

❌ Features must contain a change to an integration test file and the resulting snapshot.

PRs must pass status checks before we can provide a meaningful review.

If you would like to request an exemption from the status checks or clarification on feedback, please leave a comment on this PR containing Exemption Request and/or Clarification Request.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.48%. Comparing base (2b2443d) to head (6d756e2).

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #32979   +/-   ##
=======================================
  Coverage   81.48%   81.48%           
=======================================
  Files         226      226           
  Lines       13768    13768           
  Branches     2416     2416           
=======================================
  Hits        11219    11219           
  Misses       2271     2271           
  Partials      278      278           

Flag	Coverage Δ
suite.unit	81.48% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
packages/aws-cdk	80.89% <ø> (ø)
packages/aws-cdk-lib/core	82.10% <ø> (ø)

[aws-cdk-automation]

AWS CodeBuild CI Report

• CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
• Commit ID: 6d756e2
• Result: SUCCEEDED
• Build Logs (available for 30 days)

Powered by github-codebuild-logs, available on the AWS Serverless Application Repository

[GavinZZ]

This change looks good to me. However, I'd like to request to add an integration test to make sure the deployability. IMO, you can add a simple integ test file and use the imageType property. Let me know if you need any help setting up the integ test file.