Bump govuk-frontend from 5.6.0 to 5.7.1 in /prototypes/basic (#102)

Bumps [govuk-frontend](https://github.com/alphagov/govuk-frontend) from 5.6.0 to 5.7.1.
- [Release notes](https://github.com/alphagov/govuk-frontend/releases)
- [Changelog](https://github.com/alphagov/govuk-frontend/blob/main/CHANGELOG.md)
- [Commits](alphagov/govuk-frontend@v5.6.0...v5.7.1)

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

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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": "5.6.0",
+    "govuk-frontend": "5.7.1",
     "govuk-prototype-kit": "13.16.2",
     "playwright": "^1.48.2"
   },