convert.rb in serviceworker-rails-0.6.0

- old
+ new

@@ -1,3 +1,7 @@
+# frozen_string_literal: true
+
+# rubocop:disable Lint/Void
 %w[48 60 72 76 96 120 152 180 192 512].each do |dim|
   %(convert heart-1200x1200.png -resize #{dim}x heart-#{dim}x#{dim}.png)
 end
+# rubocop:enable Lint/Void