Remove sassc dependency

Gemfile

@@ -6,14 +6,17 @@ gemspec
 
 group :development, :test do
   gem 'activestorage', '~> 6.0'
-  gem 'capybara', '~> 3.33'
   gem 'puma', '~> 4.3'
-  gem 'rspec_junit_formatter', '~> 0.4'
-  gem 'rspec-rails', '~> 4.0'
-  gem 'selenium-webdriver', '~> 3.142'
+  gem 'sassc', '~> 2.4'
   gem 'sprockets-rails', '~> 3.2'
   gem 'sqlite3', '~> 1.4'
 
+  # Testing
+  gem 'capybara'
+  gem 'rspec_junit_formatter'
+  gem 'rspec-rails'
+  gem 'selenium-webdriver'
+
   # Linters
   gem 'brakeman'
   gem 'fasterer'