Bump govuk_schemas from 4.5.0 to 4.6.0

Bumps [govuk_schemas](https://github.com/alphagov/govuk_schemas_gem) from 4.5.0 to 4.6.0.
- [Changelog](https://github.com/alphagov/govuk_schemas/blob/main/CHANGELOG.md)
- [Commits](alphagov/govuk_schemas@v4.5.0...v4.6.0)

---
updated-dependencies:
- dependency-name: govuk_schemas
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -58,16 +58,16 @@ GEM
       statsd-ruby (~> 1.5)
     govuk_message_queue_consumer (4.1.0)
       bunny (~> 2.17)
-    govuk_schemas (4.5.0)
-      json-schema (>= 2.8, < 3.1)
+    govuk_schemas (4.6.0)
+      json-schema (>= 2.8, < 4.1)
     hashdiff (1.0.1)
     http-accept (1.7.0)
     http-cookie (1.0.5)
       domain_name (~> 0.5)
     i18n (1.13.0)
       concurrent-ruby (~> 1.0)
     json (2.6.3)
-    json-schema (3.0.0)
+    json-schema (4.0.0)
       addressable (>= 2.8)
     link_header (0.0.8)
     logstasher (2.1.5)