Bump govuk_publishing_components from 12.4.0 to 12.6.0

Bumps [govuk_publishing_components](https://github.com/alphagov/govuk_publishing_components) from 12.4.0 to 12.6.0.
- [Release notes](https://github.com/alphagov/govuk_publishing_components/releases)
- [Changelog](https://github.com/alphagov/govuk_publishing_components/blob/master/CHANGELOG.md)
- [Commits](alphagov/govuk_publishing_components@v12.4.0...v12.6.0)

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

Gemfile

@@ -21,7 +21,7 @@ gem 'gds-sso', '~> 13.5'
 gem 'govspeak', '~> 5.6'
 gem 'govuk_admin_template', '~> 6.6'
 gem 'govuk_app_config', '~> 1.10'
-gem 'govuk_publishing_components', '~> 12.4.0'
+gem 'govuk_publishing_components', '~> 12.6.0'
 gem 'govuk_sidekiq', '~> 3.0'
 gem 'slimmer', '~> 13.0'
 

Gemfile.lock

@@ -90,7 +90,7 @@ GEM
     coderay (1.1.2)
     commander (4.4.7)
       highline (~> 2.0.0)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.1.3)
     connection_pool (2.2.2)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
@@ -162,7 +162,7 @@ GEM
     govuk_frontend_toolkit (8.1.0)
       railties (>= 3.1.0)
       sass (>= 3.2.0)
-    govuk_publishing_components (12.4.0)
+    govuk_publishing_components (12.6.0)
       govspeak (>= 5.0.3)
       govuk_app_config
       govuk_frontend_toolkit
@@ -474,7 +474,7 @@ DEPENDENCIES
   govuk-lint (~> 3.9)
   govuk_admin_template (~> 6.6)
   govuk_app_config (~> 1.10)
-  govuk_publishing_components (~> 12.4.0)
+  govuk_publishing_components (~> 12.6.0)
   govuk_sidekiq (~> 3.0)
   govuk_test
   jasmine (~> 3.3)