Bump sass-rails from 5.0.7 to 6.0.0

Bumps [sass-rails](https://github.com/rails/sass-rails) from 5.0.7 to 6.0.0.
- [Release notes](https://github.com/rails/sass-rails/releases)
- [Commits](rails/sass-rails@v5.0.7...v6.0.0)

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

Gemfile

@@ -20,7 +20,7 @@ gem 'pg_query', '>= 0.9.0'
 gem 'pghero'
 gem 'puma', '~> 3.12'
 gem 'rack-cors'
-gem 'sass-rails', '~> 5.0'
+gem 'sass-rails', '~> 6.0'
 gem 'sentry-raven'
 gem 'sidekiq', '< 6'
 gem 'skylight'

Gemfile.lock

@@ -149,7 +149,7 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.2.3)
+    loofah (2.3.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.0.13)
@@ -162,7 +162,7 @@ GEM
     mime-types-data (3.2019.0904)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
-    minitest (5.12.0)
+    minitest (5.12.2)
     multi_xml (0.6.0)
     multipart-post (2.1.1)
     nenv (0.3.0)
@@ -259,7 +259,7 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rainbow (3.0.0)
-    rake (12.3.3)
+    rake (13.0.0)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
@@ -315,17 +315,16 @@ GEM
       sexp_processor (~> 4.9)
     rugged (0.28.3.1)
     safe_yaml (1.0.5)
-    sass (3.7.4)
-      sass-listen (~> 4.0.0)
-    sass-listen (4.0.0)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-    sass-rails (5.0.7)
-      railties (>= 4.0.0, < 6)
-      sass (~> 3.1)
-      sprockets (>= 2.8, < 4.0)
-      sprockets-rails (>= 2.0, < 4.0)
-      tilt (>= 1.1, < 3)
+    sass-rails (6.0.0)
+      sassc-rails (~> 2.1, >= 2.1.1)
+    sassc (2.2.1)
+      ffi (~> 1.9)
+    sassc-rails (2.1.2)
+      railties (>= 4.0.0)
+      sassc (>= 2.0)
+      sprockets (> 3.0)
+      sprockets-rails
+      tilt
     sawyer (0.8.2)
       addressable (>= 2.3.5)
       faraday (> 0.8, < 2.0)
@@ -445,7 +444,7 @@ DEPENDENCIES
   rspec-benchmark
   rspec-rails (~> 3.7)
   rspec-sidekiq
-  sass-rails (~> 5.0)
+  sass-rails (~> 6.0)
   sentry-raven
   sidekiq (< 6)
   skylight