Bump govuk_app_config from 9.0.2 to 9.0.3

Bumps [govuk_app_config](https://github.com/alphagov/govuk_app_config) from 9.0.2 to 9.0.3.
- [Changelog](https://github.com/alphagov/govuk_app_config/blob/main/CHANGELOG.md)
- [Commits](alphagov/govuk_app_config@v9.0.2...v9.0.3)

---
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

@@ -152,7 +152,7 @@ GEM
       nokogiri (~> 1.12)
       rinku (~> 2.0)
       sanitize (~> 6)
-    govuk_app_config (9.0.2)
+    govuk_app_config (9.0.3)
       logstasher (~> 2.1)
       opentelemetry-exporter-otlp (~> 0.25.0)
       opentelemetry-instrumentation-all (~> 0.39.1)