Bump govuk_app_config from 4.1.0 to 4.2.0

Bumps [govuk_app_config](https://github.com/alphagov/govuk_app_config) from 4.1.0 to 4.2.0.
- [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@v4.1.0...v4.2.0)

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

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

Gemfile.lock

@@ -104,7 +104,7 @@ GEM
     execjs (2.7.0)
     faker (2.13.0)
       i18n (>= 1.6, < 2)
-    faraday (2.0.1)
+    faraday (2.1.0)
       faraday-net_http (~> 2.0)
       ruby2_keywords (>= 0.0.4)
     faraday-net_http (2.0.1)
@@ -118,7 +118,7 @@ GEM
     globalid (1.0.0)
       activesupport (>= 5.0)
     govuk_ab_testing (2.4.2)
-    govuk_app_config (4.1.0)
+    govuk_app_config (4.2.0)
       logstasher (>= 1.2.2, < 2.2.0)
       puma (~> 5.0)
       sentry-rails (~> 4.5.0)
@@ -207,7 +207,7 @@ GEM
     mocha (1.11.2)
     netrc (0.11.0)
     nio4r (2.5.8)
-    nokogiri (1.13.0)
+    nokogiri (1.13.1)
       mini_portile2 (~> 2.7.0)
       racc (~> 1.4)
     null_logger (0.0.1)
@@ -269,7 +269,7 @@ GEM
     raindrops (0.20.0)
     rake (13.0.6)
     regexp_parser (1.8.2)
-    request_store (1.5.0)
+    request_store (1.5.1)
       rack (>= 1.4)
     rest-client (2.1.0)
       http-accept (>= 1.7.0, < 2.0)