DEV: Update to lastest rubocop-discourse

db/migrate/20131014203951_backfill_post_upload_reverse_index.rb

@@ -19,7 +19,7 @@ class BackfillPostUploadReverseIndex < ActiveRecord::Migration[4.2]
 
   def add_to_reverse_index(url, post_id)
     # make sure we have a url to insert
-    return unless url.present?
+    return if url.blank?
     # local uploads are relative
     if index = url.index(local_base_url)
       url = url[index..-1]

db/migrate/20180710172959_disallow_multi_levels_theme_components.rb

@@ -73,9 +73,9 @@ class DisallowMultiLevelsThemeComponents < ActiveRecord::Migration[5.2]
       )
 
     children.each do |child|
-      unless @handled.include?(
-               [top_parent.parent_theme_id, child.parent_theme_id, child.child_theme_id],
-             )
+      if @handled.exclude?(
+           [top_parent.parent_theme_id, child.parent_theme_id, child.child_theme_id],
+         )
         migrate_child(child, top_parent)
       end
     end