Build(deps): bump govuk_app_config from 9.23.5 to 9.23.6

Bumps [govuk_app_config](https://github.com/alphagov/govuk_app_config) from 9.23.5 to 9.23.6.
- [Changelog](https://github.com/alphagov/govuk_app_config/blob/main/CHANGELOG.md)
- [Commits](alphagov/govuk_app_config@v9.23.5...v9.23.6)

---
updated-dependencies:
- dependency-name: govuk_app_config
  dependency-version: 9.23.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Gemfile.lock

@@ -160,16 +160,16 @@ GEM
       warden-oauth2 (~> 0.0.1)
     globalid (1.3.0)
       activesupport (>= 6.1)
-    google-protobuf (4.33.4)
+    google-protobuf (4.33.5)
       bigdecimal
       rake (>= 13)
-    google-protobuf (4.33.4-aarch64-linux-gnu)
+    google-protobuf (4.33.5-aarch64-linux-gnu)
       bigdecimal
       rake (>= 13)
-    google-protobuf (4.33.4-arm64-darwin)
+    google-protobuf (4.33.5-arm64-darwin)
       bigdecimal
       rake (>= 13)
-    google-protobuf (4.33.4-x86_64-linux-gnu)
+    google-protobuf (4.33.5-x86_64-linux-gnu)
       bigdecimal
       rake (>= 13)
     googleapis-common-protos-types (1.22.0)
@@ -184,7 +184,7 @@ GEM
       nokogiri (~> 1.12)
       rinku (~> 2.0)
       sanitize (>= 6, < 8)
-    govuk_app_config (9.23.5)
+    govuk_app_config (9.23.6)
       connection_pool (< 3)
       logstasher (~> 2.1)
       opentelemetry-exporter-otlp (>= 0.25, < 0.32)