Bump govuk_publishing_components from 17.11.0 to 17.12.1

Bumps [govuk_publishing_components](https://github.com/alphagov/govuk_publishing_components) from 17.11.0 to 17.12.1.
- [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@v17.11.0...v17.12.1)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Gemfile

@@ -17,7 +17,7 @@ gem 'gds-api-adapters', '~> 59.5'
 gem 'govuk_ab_testing', '~> 2.4'
 gem 'govuk_app_config', '~> 1.18'
 gem 'govuk_frontend_toolkit', '~> 8.2.0'
-gem 'govuk_publishing_components', '~> 17.11.0'
+gem 'govuk_publishing_components', '~> 17.12.1'
 gem 'plek', '~> 3.0'
 gem 'slimmer', '~> 13.1'
 

Gemfile.lock

@@ -85,7 +85,7 @@ GEM
     crass (1.0.4)
     dalli (2.7.10)
     debug_inspector (0.0.3)
-    domain_name (0.5.20180417)
+    domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
     erubi (1.8.0)
     execjs (2.7.0)
@@ -118,7 +118,7 @@ GEM
     govuk_frontend_toolkit (8.2.0)
       railties (>= 3.1.0)
       sass (>= 3.2.0)
-    govuk_publishing_components (17.11.0)
+    govuk_publishing_components (17.12.1)
       gds-api-adapters
       govuk_app_config
       govuk_frontend_toolkit
@@ -176,7 +176,7 @@ GEM
     mime-types-data (3.2019.0331)
     mimemagic (0.3.3)
     mini_magick (4.9.3)
-    mini_mime (1.0.1)
+    mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.11.3)
     minitest-reporters (1.3.6)
@@ -188,7 +188,7 @@ GEM
       metaclass (~> 0.0.1)
     multipart-post (2.1.1)
     netrc (0.11.0)
-    nio4r (2.3.1)
+    nio4r (2.4.0)
     nokogiri (1.10.3)
       mini_portile2 (~> 2.4.0)
     null_logger (0.0.1)
@@ -375,7 +375,7 @@ DEPENDENCIES
   govuk_ab_testing (~> 2.4)
   govuk_app_config (~> 1.18)
   govuk_frontend_toolkit (~> 8.2.0)
-  govuk_publishing_components (~> 17.11.0)
+  govuk_publishing_components (~> 17.12.1)
   govuk_schemas (~> 3.3)
   govuk_test
   htmlentities (~> 4.3)