Stop using deprecated search API param

[utkuufuk]

Uses the new currentSiteSpace param instead of the deprecated includedSiteSpaces param for search scope.

Once GBO stops using the deprecated param, we'll check the logs to see whether there are any other consumers that use it, and if not, we'll be able to completely get rid of it.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 7057952

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

[github-actions]

Summary of the deployments:

Version	URL	Status
Vercel	https://gitbook-v2-n5ssp455a-gitbook.vercel.app	✅
Cloudflare	https://d9c12168-gitbook-open-v2-preview.gitbook.workers.dev	✅

Test content

Site	2v	2c
GitBook	https://gitbook-v2-n5ssp455a-gitbook.vercel.app/url/gitbook.com/docs	https://d9c12168-gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.com/docs
E2E	https://gitbook-v2-n5ssp455a-gitbook.vercel.app/url/gitbook.gitbook.io/test-gitbook-open	https://d9c12168-gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.gitbook.io/test-gitbook-open

[argos-ci]

The latest updates on your projects. Learn more about Argos notifications ↗︎

Build	Status	Details	Updated (UTC)
customers-v2 (Inspect)	✅ No changes detected	-	Sep 11, 2025, 8:36 AM
v2-cloudflare (Inspect)	✅ No changes detected	-	Sep 11, 2025, 8:10 AM
v2-vercel (Inspect)	👍 Changes approved	1 changed	Sep 11, 2025, 8:10 AM