Merge pull request #2309 from alphagov/dependabot/bundler/govuk_app_config-9.18.1

Author: govuk-ci

Gemfile.lock

@@ -180,7 +180,7 @@ GEM
       nokogiri (~> 1.12)
       rinku (~> 2.0)
       sanitize (>= 6, < 8)
-    govuk_app_config (9.17.17)
+    govuk_app_config (9.18.1)
       logstasher (~> 2.1)
       opentelemetry-exporter-otlp (>= 0.25, < 0.31)
       opentelemetry-instrumentation-all (>= 0.39.1, < 0.79.0)