Add and apply Rails/RedundantActiveRecordAllMethod

This rule was introduced in rubocop-rails 2.21.0.

db/dev_seeds/budgets.rb

@@ -48,7 +48,7 @@ section "Creating Budgets" do
     end
   end
 
-  Budget.all.find_each do |budget|
+  Budget.find_each do |budget|
     city_group = budget.groups.create!(
       random_locales_attributes(name: -> { I18n.t("seeds.budgets.groups.all_city") })
     )

db/dev_seeds/sdg.rb

@@ -32,7 +32,7 @@ section "Creating Sustainable Development Goals" do
 end
 
 section "Creating SDG homepage cards" do
-  SDG::Phase.all.find_each do |phase|
+  SDG::Phase.find_each do |phase|
     Widget::Card.create!(cardable: phase, title: "#{phase.title} card",
                          link_text: "Link Text", link_url: "/any_path")
   end