Bump govuk_app_config from 4.0.0 to 4.0.1

Bumps [govuk_app_config](https://github.com/alphagov/govuk_app_config) from 4.0.0 to 4.0.1.
- [Release notes](https://github.com/alphagov/govuk_app_config/releases)
- [Changelog](https://github.com/alphagov/govuk_app_config/blob/main/CHANGELOG.md)
- [Commits](alphagov/govuk_app_config@v4.0.0...v4.0.1)

---
updated-dependencies:
- dependency-name: govuk_app_config
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -127,7 +127,7 @@ GEM
       rest-client (~> 2.0)
     globalid (0.5.2)
       activesupport (>= 5.0)
-    govuk_app_config (4.0.0)
+    govuk_app_config (4.0.1)
       logstasher (>= 1.2.2, < 2.2.0)
       sentry-rails (~> 4.5.0)
       sentry-ruby (~> 4.5.0)
@@ -238,7 +238,7 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.4.1)
+    rails-html-sanitizer (1.4.2)
       loofah (~> 2.3)
     rails-i18n (6.0.0)
       i18n (>= 0.7, < 2)