[Docs Site] Bump @cloudflare/vitest-pool-workers from 0.8.14 to 0.8.15 (#21636)

Bumps [@cloudflare/vitest-pool-workers](https://github.com/cloudflare/workers-sdk/tree/HEAD/packages/vitest-pool-workers) from 0.8.14 to 0.8.15.
- [Release notes](https://github.com/cloudflare/workers-sdk/releases)
- [Changelog](https://github.com/cloudflare/workers-sdk/blob/main/packages/vitest-pool-workers/CHANGELOG.md)
- [Commits](https://github.com/cloudflare/workers-sdk/commits/@cloudflare/[email protected]/packages/vitest-pool-workers)

---
updated-dependencies:
- dependency-name: "@cloudflare/vitest-pool-workers"
  dependency-version: 0.8.15
  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

@@ -36,7 +36,7 @@
 		"@astrojs/starlight-docsearch": "0.6.0",
 		"@astrojs/starlight-tailwind": "3.0.1",
 		"@astrojs/tailwind": "5.1.5",
-		"@cloudflare/vitest-pool-workers": "0.8.14",
+		"@cloudflare/vitest-pool-workers": "0.8.15",
 		"@cloudflare/workers-types": "4.20250414.0",
 		"@codingheads/sticky-header": "1.0.2",
 		"@expressive-code/plugin-collapsible-sections": "0.40.2",