upcoming: [M3-9511] - VPC IPv6 - Update endpoints and types for VPC Entity

[hana-akamai]

Description 📝

Update endpoints and types for VPC Entity

Changes 🔄

• Add optional ipv6 property to VPC and CreateVPCPayload interface
• Add optional ipv6 validation to createVPCSchema

Verification steps

(How to verify changes)

• Cross-reference VPC IPv6 API spec (linked in parent ticket) and updated types for
  POST /v4/vpcs
  GET /v4/vpcs
  GET /v4/vpcs/{vpcId}

Author Checklists

As an Author, to speed up the review process, I considered 🤔

👀 Doing a self review
❔ Our contribution guidelines
🤏 Splitting feature into small PRs
➕ Adding a changeset
🧪 Providing/improving test coverage
🔐 Removing all sensitive information from the code and PR description
🚩 Using a feature flag to protect the release
👣 Providing comprehensive reproduction steps
📑 Providing or updating our documentation
🕛 Scheduling a pair reviewing session
📱 Providing mobile support
♿ Providing accessibility support

• I have read and considered all applicable items listed above.

As an Author, before moving this PR from Draft to Open, I confirmed ✅

• All unit tests are passing
• TypeScript compilation succeeded without errors
• Code passes all linting rules

[linode-gh-bot]

Cloud Manager UI test results

🔺 1 failing test on test run #5 ↗︎

❌ Failing	✅ Passing	↪️ Skipped	🕐 Duration
1 Failing	538 Passing	3 Skipped	128m 53s

Details

Failing Tests
	Spec	Test
❌	clone-linode.spec.ts	clone linode » can clone a Linode from Linode details page

Troubleshooting

Use this command to re-run the failing tests:

pnpm cy:run -s "cypress/e2e/core/linodes/clone-linode.spec.ts"

[dwiley-akamai]

Compared to API spec and this LGTM ✅

Can we get Upcoming Features changesets for api-v4 and validation?