config: add KeyVault new api version 2026-02-01

[wuxu92]

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Description

All Key Vault control plane API versions before 2026-02-01 retire on February 27, 2027: https://learn.microsoft.com/en-us/azure/key-vault/general/access-control-default?tabs=azure-cli

PR Checklist

• I have checked to ensure there aren't other open Pull Requests for the same update/change.
• I have checked if my changes close any open issues. If so, please include appropriate closing keywords below.
• I have used a meaningful PR title to help maintainers and other users understand this change and help prevent duplicate work.

Adding New API Version

Important

The primary purpose of API versions in this repository is to serve the Terraform Azure Providers. API versions are imported and maintained to support the providers' needs. If you would like to add an API version for use outside of the providers (e.g., another project consuming go-azure-sdk), please include a description of what you would like to use it for so we can evaluate the request.

• I have verified the Service/API Version exists in the Azure REST API Specs.
• I have followed the Service Import Guide.
• This PR is for another downstream project and not for the Terraform Azure Providers.

Preview API Version

Important

We generally do not add preview API versions to go-azure-sdk, and we rarely support preview features in the provider. Exceptions require strong justification, such as when preview features have no GA date or no stable API version exists for a service. Please ensure you have thoroughly considered whether a preview API is truly necessary before proceeding.

• This PR adds a preview API version

1. Is there a stable (GA) version available?

2. Why should we support this preview API?

3. Do existing resources already use a preview API?

4. What is the expected timeline for GA?

Changes to Tooling

• I have added an explanation of what my changes do and why I'd like you to include them.
• I have written new tests for my changes & updated any relevant documentation.
• I have successfully run tests with my changes locally. If not, please provide details on testing challenges.

Testing Command(s) Used:

# e.g., go test ./tools/generator-go-sdk/...

Testing Evidence:

Changes to Resource Config

• I have followed the Resource Generation Guide.
• I have verified the required SDK is available in hashicorp/go-azure-sdk.

Related Issue(s)

AI Assistance Disclosure

• AI Assisted - This contribution was made by, or with the assistance of, AI/LLMs

Note

If this PR changes meaningfully during the course of review, please update the title and description as required.

[sreallymatt]

Thanks @wuxu92 - LGTM ✅