Bump govuk-frontend from 5.4.0 to 5.7.1

Bumps [govuk-frontend](https://github.com/alphagov/govuk-frontend) from 5.4.0 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@v5.4.0...v5.7.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -13,7 +13,7 @@
     "@stimulus-components/reveal": "^5.0.0",
     "dfe-frontend": "^2.0.1",
     "esbuild": "^0.21.5",
-    "govuk-frontend": "^5.3.1",
+    "govuk-frontend": "^5.7.1",
     "sass": "^1.80.5"
   },
   "devDependencies": {

yarn.lock

@@ -972,7 +972,7 @@ __metadata:
     "@stimulus-components/reveal": "npm:^5.0.0"
     dfe-frontend: "npm:^2.0.1"
     esbuild: "npm:^0.21.5"
-    govuk-frontend: "npm:^5.3.1"
+    govuk-frontend: "npm:^5.7.1"
     postcss: "npm:8"
     sass: "npm:^1.80.5"
     stylelint: "npm:^16.10.0"
@@ -1152,6 +1152,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"govuk-frontend@npm:^5.7.1":
+  version: 5.7.1
+  resolution: "govuk-frontend@npm:5.7.1"
+  checksum: d40c2d971fa1151a1c5bb07a6c02278c3c26135d9df8dc13ee367ad7d8a0140019912f35f041ed499a1db505f184bdc4548db7311d2bcc8ca43f01f144a65210
+  languageName: node
+  linkType: hard
+
 "graceful-fs@npm:^4.2.6":
   version: 4.2.11
   resolution: "graceful-fs@npm:4.2.11"