move notification schedule job

app/workers/notifications/schedule_reminder_mails_job.rb

@@ -28,8 +28,8 @@
 # See docs/COPYRIGHT.rdoc for more details.
 #++
 
-module Cron
-  class ScheduleReminderMailsJob < CronJob
+module Notifications
+  class ScheduleReminderMailsJob < Cron::CronJob
     # runs every 30min step, so 00:00, 00:30, 01:00, 01:30...
     self.cron_expression = '/30 * * * *'
 

spec/workers/notifications/schedule_reminder_mails_job_spec.rb

@@ -30,7 +30,7 @@
 
 require 'spec_helper'
 
-describe Cron::ScheduleReminderMailsJob, type: :job do
+describe Notifications::ScheduleReminderMailsJob, type: :job do
   subject(:job) { described_class.perform_now }
 
   let(:ids) { [23, 42] }