[Docs Site] Bump @astrojs/starlight-docsearch from 0.2.0 to 0.3.0 (#18430)

Bumps [@astrojs/starlight-docsearch](https://github.com/withastro/starlight/tree/HEAD/packages/docsearch) from 0.2.0 to 0.3.0.
- [Release notes](https://github.com/withastro/starlight/releases)
- [Changelog](https://github.com/withastro/starlight/blob/main/packages/docsearch/CHANGELOG.md)
- [Commits](https://github.com/withastro/starlight/commits/@astrojs/[email protected]/packages/docsearch)

---
updated-dependencies:
- dependency-name: "@astrojs/starlight-docsearch"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -31,7 +31,7 @@
 		"@astrojs/rss": "^4.0.9",
 		"@astrojs/sitemap": "^3.2.1",
 		"@astrojs/starlight": "^0.29.2",
-		"@astrojs/starlight-docsearch": "^0.2.0",
+		"@astrojs/starlight-docsearch": "^0.3.0",
 		"@astrojs/starlight-tailwind": "^2.0.3",
 		"@astrojs/tailwind": "^5.1.2",
 		"@cloudflare/puppeteer": "^0.0.14",