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

@@ -113,7 +113,7 @@ GEM
     google-protobuf (3.23.4-x86_64-linux)
     googleapis-common-protos-types (1.6.0)
       google-protobuf (~> 3.14)
-    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)