[Docs Site] Bump @cloudflare/vitest-pool-workers from 0.8.55 to 0.8.56 (cloudflare#23875)

---
updated-dependencies:
- dependency-name: "@cloudflare/vitest-pool-workers"
  dependency-version: 0.8.56
  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

@@ -35,7 +35,7 @@
 		"@astrojs/starlight": "0.35.1",
 		"@astrojs/starlight-docsearch": "0.6.0",
 		"@astrojs/starlight-tailwind": "4.0.1",
-		"@cloudflare/vitest-pool-workers": "0.8.55",
+		"@cloudflare/vitest-pool-workers": "0.8.56",
 		"@cloudflare/workers-types": "4.20250718.0",
 		"@codingheads/sticky-header": "1.0.2",
 		"@expressive-code/plugin-collapsible-sections": "0.41.3",