[Docs Site] Bump astro from 4.16.17 to 4.16.18 (#18846)

Bumps [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro) from 4.16.17 to 4.16.18.
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/[email protected]/packages/astro/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/[email protected]/packages/astro)

---
updated-dependencies:
- dependency-name: astro
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

@@ -47,7 +47,7 @@
 		"@types/react": "^18.3.12",
 		"@types/react-dom": "^18.3.1",
 		"algoliasearch": "^5.17.1",
-		"astro": "^4.16.17",
+		"astro": "^4.16.18",
 		"astro-breadcrumbs": "^3.3.1",
 		"astro-icon": "^1.1.2",
 		"astro-live-code": "^0.0.4",