Bump govuk_publishing_components from 16.3.0 to 16.6.0

Bumps [govuk_publishing_components](https://github.com/alphagov/govuk_publishing_components) from 16.3.0 to 16.6.0.
- [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@v16.3.0...v16.6.0)

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

Author: dependabot-support

Gemfile

@@ -17,7 +17,7 @@ gem 'gds-api-adapters', '~> 57.4'
 gem 'govuk_ab_testing', '~> 2.4'
 gem 'govuk_app_config', '~> 1.13'
 gem 'govuk_frontend_toolkit', '~> 8.1.0'
-gem 'govuk_publishing_components', '~> 16.3.0'
+gem 'govuk_publishing_components', '~> 16.6.0'
 gem 'plek', '~> 2.1'
 gem 'slimmer', '~> 13.1'
 

Gemfile.lock

@@ -78,8 +78,6 @@ GEM
       archive-zip (~> 0.10)
       nokogiri (~> 1.8)
     coderay (1.1.2)
-    commander (4.4.7)
-      highline (~> 2.0.0)
     concurrent-ruby (1.1.5)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
@@ -104,17 +102,16 @@ GEM
       rest-client (~> 2.0)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
-    govspeak (5.9.0)
+    govspeak (6.0.0)
       actionview (~> 5.0)
       addressable (>= 2.3.8, < 3)
-      commander (~> 4.4)
       htmlentities (~> 4)
       i18n (~> 0.7)
       kramdown (~> 1.15.0)
       money (~> 6.7)
       nokogiri (~> 1.5)
       rinku (~> 2.0)
-      sanitize (~> 4.6)
+      sanitize (~> 5)
     govuk-lint (3.11.0)
       rubocop (~> 0.64)
       rubocop-rspec (~> 1.28)
@@ -129,7 +126,7 @@ GEM
     govuk_frontend_toolkit (8.1.0)
       railties (>= 3.1.0)
       sass (>= 3.2.0)
-    govuk_publishing_components (16.3.0)
+    govuk_publishing_components (16.6.0)
       govspeak (>= 5.0.3)
       govuk_app_config
       govuk_frontend_toolkit
@@ -140,7 +137,6 @@ GEM
     govuk_schemas (3.2.0)
       json-schema (~> 2.8.0)
     hashdiff (0.3.7)
-    highline (2.0.1)
     htmlentities (4.3.4)
     http-cookie (1.0.3)
       domain_name (~> 0.5)
@@ -193,8 +189,8 @@ GEM
     nio4r (2.3.1)
     nokogiri (1.10.1)
       mini_portile2 (~> 2.4.0)
-    nokogumbo (1.5.0)
-      nokogiri
+    nokogumbo (2.0.1)
+      nokogiri (~> 1.8, >= 1.8.4)
     null_logger (0.0.1)
     oj (3.7.10)
     parallel (1.13.0)
@@ -280,10 +276,10 @@ GEM
     ruby-progressbar (1.10.0)
     rubyzip (1.2.2)
     safe_yaml (1.0.4)
-    sanitize (4.6.6)
+    sanitize (5.0.0)
       crass (~> 1.0.2)
-      nokogiri (>= 1.4.4)
-      nokogumbo (~> 1.4)
+      nokogiri (>= 1.8.0)
+      nokogumbo (~> 2.0)
     sass (3.7.3)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
@@ -370,7 +366,7 @@ DEPENDENCIES
   govuk_ab_testing (~> 2.4)
   govuk_app_config (~> 1.13)
   govuk_frontend_toolkit (~> 8.1.0)
-  govuk_publishing_components (~> 16.3.0)
+  govuk_publishing_components (~> 16.6.0)
   govuk_schemas (~> 3.2)
   htmlentities (~> 4.3)
   jasmine-rails