Fix rufus jobs to release db connections after use [SCI-10581]

.rubocop.yml

@@ -299,6 +299,9 @@ Naming/VariableName:
 Naming/VariableNumber:
   EnforcedStyle: normalcase
 
+Naming/BlockForwarding:
+  EnforcedStyle: explicit
+
 Style/WordArray:
   EnforcedStyle: percent
   MinSize: 0

config/initializers/scheduler.rb

@@ -2,12 +2,17 @@
 
 require 'rufus-scheduler'
 
+def schedule_task(scheduler, interval, &block)
+  scheduler.every interval do
+    ActiveRecord::Base.connection_pool.with_connection(&block)
+  end
+end
+
 if ENV['WORKER'].present?
   scheduler = Rufus::Scheduler.singleton
 
   if ENV['ENABLE_TEMPLATES_SYNC'] == 'true'
-    # Templates sync periodic task
-    scheduler.every '12h' do
+    schedule_task(scheduler, '12h') do
       Rails.logger.info('Templates, syncing all template projects')
       updated, total = TemplatesService.new.update_all_templates
       Rails.logger.info(
@@ -18,19 +23,18 @@ if ENV['WORKER'].present?
   end
 
   if ENV['ENABLE_FLUICS_SYNC'] == 'true'
-    scheduler.every '24h' do
+    schedule_task(scheduler, '24h') do
       LabelPrinters::Fluics::SyncService.new.sync_templates! if LabelPrinter.fluics.any?
     end
   end
 
   reminder_job_interval = ENV['REMINDER_JOB_INTERVAL'] || '1h'
-
-  scheduler.every reminder_job_interval do
+  schedule_task(scheduler, reminder_job_interval) do
     MyModules::DueDateReminderJob.perform_now
     RepositoryItemDateReminderJob.perform_now
   end
 
-  scheduler.every '1d' do
+  schedule_task(scheduler, '1d') do
     NotificationCleanupJob.perform_now
   end
 end