Don't enforce available locales in dev seeds

We're using Faker during this task, and it depends on English being
available as a fallback for methods like the Lorem ipsum ones.

lib/tasks/db.rake

@@ -2,6 +2,7 @@ namespace :db do
  desc "Resets the database and loads it from db/dev_seeds.rb"
  task :dev_seed, [:print_log] => [:environment] do |t, args|
  @avoid_log = args[:print_log] == "avoid_log"
+ I18n.enforce_available_locales = false
  load(Rails.root.join("db", "dev_seeds.rb"))
  end
 end