Bump govuk-frontend from 5.11.2 to 5.13.0 in /prototypes/basic

Bumps [govuk-frontend](https://github.com/alphagov/govuk-frontend/tree/HEAD/packages/govuk-frontend) from 5.11.2 to 5.13.0.
- [Release notes](https://github.com/alphagov/govuk-frontend/releases)
- [Changelog](https://github.com/alphagov/govuk-frontend/blob/main/CHANGELOG.md)
- [Commits](https://github.com/alphagov/govuk-frontend/commits/v5.13.0/packages/govuk-frontend)

---
updated-dependencies:
- dependency-name: govuk-frontend
  dependency-version: 5.13.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

prototypes/basic/package-lock.json

@@ -8,7 +8,7 @@
   "dependencies": {
     "@govuk-prototype-kit/common-templates": "2.0.1",
     "@register-dynamics/importer": "file:../../lib/importer",
-    "govuk-frontend": "5.11.2",
+    "govuk-frontend": "5.13.0",
     "govuk-prototype-kit": "13.18.0",
     "playwright": "^1.54.1"
   },