feat(VpcV2): add BYOIP IPv6 to VPCv2

[shikha372]

Issue # (if applicable)

Closes #.

Reason for this change

This PR adds new fields under VPCv2 construct to add BYOIP using AWS pool id and CIDR range of the IPv6 address.

Description of changes

Describe any new or updated permissions being added

No update to permissions.

Description of how you validated changes

Added unit test and integration test.
To test these changes in future, users will need to modify the pool-id with the one hosted in their account and run integration test.
For internal testing, instructions added to team-internal docs with pool onboarding details.

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]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.49%. Comparing base (c86296e) to head (704451a).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #32927   +/-   ##
=======================================
  Coverage   81.49%   81.49%           
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  Files         224      224           
  Lines       13755    13755           
  Branches     2413     2413           
=======================================
  Hits        11209    11209           
  Misses       2273     2273           
  Partials      273      273           

Flag	Coverage Δ
suite.unit	81.49% <ø> (ø)

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Components	Coverage Δ
packages/aws-cdk	80.85% <ø> (ø)
packages/aws-cdk-lib/core	82.15% <ø> (ø)

✅ Updated pull request passes all PRLinter validations. Dismissing previous PRLinter review.

[paulhcsun]

@Mergifyio update

[mergify]

update

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[paulhcsun]

@Mergifyio update

[mergify]

update

✅ Branch has been successfully updated

[shikha372]

@Mergifyio update

[mergify]

update

☑️ Nothing to do

• #commits-behind > 0 [📌 update requirement]
• -closed [📌 update requirement]
• -conflict [📌 update requirement]
• queue-position = -1 [📌 update requirement]

[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).

[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).

[aws-cdk-automation]

AWS CodeBuild CI Report

• CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
• Commit ID: 704451a
• Result: SUCCEEDED
• Build Logs (available for 30 days)

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[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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