Merge pull request #4555 from alphagov/dependabot/bundler/slimmer-15.0.0

Bump slimmer from 14.0.0 to 15.0.0

Author: kevindew

Gemfile

@@ -21,7 +21,7 @@ gem "plek", "3.0.0"
 gem "rack_strip_client_ip"
 gem "rails-i18n", "~> 6.0.0"
 gem "sass-rails", "~> 5.0.7"
-gem "slimmer", "~> 14.0.0"
+gem "slimmer", "~> 15.0.0"
 gem "tilt", "2.0.10"
 gem "uglifier"
 gem "uk_postcode", "~> 2.1.5"

Gemfile.lock

@@ -303,7 +303,7 @@ GEM
     simplecov-html (0.12.2)
     simplecov-rcov (0.2.3)
       simplecov (>= 0.4.1)
-    slimmer (14.0.0)
+    slimmer (15.0.0)
       activesupport
       json
       nokogiri (~> 1.7)
@@ -386,7 +386,7 @@ DEPENDENCIES
   shoulda (~> 3.6.0)
   simplecov (~> 0.18.5)
   simplecov-rcov (~> 0.2.3)
-  slimmer (~> 14.0.0)
+  slimmer (~> 15.0.0)
   sprockets-rails
   tilt (= 2.0.10)
   timecop