fix(cloudfront): add validations on ResponseHeadersCorsBehavior.accessControlAllowMethods

[Tietew]

Issue # (if applicable)

N/A

Reason for this change

There is no description about the allowed values on ResponseHeadersPolicy's corsBehavior.accessControlAllowMethods.
The wildcard (any methods allowed) is ALL instead of * (wildcard for headers).

This PR adds the description and validations on it.

Description of changes

Added the description of the allowed values on ResponseHeadersCorsBehavior.accessControlAllowMethods.
Added validations:

• exactly ['ALL'] which means any http methods are allowed
• whether includes only allowed method names

Describe any new or updated permissions being added

Nothing

Description of how you validated changes

Added unit tests

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

---

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 has failed. See the aws-cdk-automation comment below for failure reasons. 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.

[Tietew]

Exemption Request

Only validations are added and these are not covered by integration tests.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.37%. Comparing base (946b748) to head (3445c30).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #32769   +/-   ##
=======================================
  Coverage   81.37%   81.37%           
=======================================
  Files         222      222           
  Lines       13693    13693           
  Branches     2412     2412           
=======================================
  Hits        11143    11143           
  Misses       2271     2271           
  Partials      279      279           

Flag	Coverage Δ
suite.unit	81.37% <ø> (ø)

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

Components	Coverage Δ
packages/aws-cdk	80.68% <ø> (ø)
packages/aws-cdk-lib/core	82.09% <ø> (ø)

[aws-cdk-automation]

AWS CodeBuild CI Report

• CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
• Commit ID: 3445c30
• Result: SUCCEEDED
• Build Logs (available for 30 days)

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

[aws-cdk-automation]

The pull request linter fails with the following errors:

❌ Fixes 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.

✅ A exemption request has been requested. Please wait for a maintainer's review.