fix(openai): Fix broken OpenAI documentation link

[nick-w-nick]

I noticed that the current URL in the JSDoc comment (https://help.openai.com/en/articles/10503543-data-residency-for-the-openai-api) shows that it has been moved to a new location:

I updated the link with the updated one provided by OpenAI (https://platform.openai.com/docs/guides/your-data)

[changeset-bot]

⚠️ No Changeset found

Latest commit: 42abb8d

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Preview	Comments	Updated (UTC)
langchainjs-docs	Ready	Preview	Comment	Sep 25, 2025 5:58pm

1 Skipped Deployment

Project	Deployment	Preview	Comments	Updated (UTC)
langchainjs-api-refs	Ignored			Sep 25, 2025 5:58pm

[christian-bromann]

LGTM 👍

Thanks a ton!