Revert "Revert "FIX: Heartbeat check per sidekiq process (#7873)""

This reverts commit e805d44965.
We now have mechanisms in place to ensure heartbeat will always
be scheduled even if the scheduler is overloaded per: 098f938b

app/jobs/regular/run_heartbeat.rb

@@ -2,19 +2,8 @@
 
 module Jobs
   class RunHeartbeat < Jobs::Base
-
-    sidekiq_options queue: 'critical'
-
-    def self.heartbeat_key
-      'heartbeat_last_run'
-    end
-
     def execute(args)
-      $redis.set(self.class.heartbeat_key, Time.new.to_i.to_s)
-    end
-
-    def self.last_heartbeat
-      $redis.get(heartbeat_key).to_i
+      Demon::Sidekiq.trigger_heartbeat(args[:queue_name])
     end
   end
 end

app/jobs/scheduled/heartbeat.rb

@@ -7,7 +7,9 @@ module Jobs
     every 3.minute
 
     def execute(args)
-      Jobs.enqueue(:run_heartbeat, {})
+      Demon::Sidekiq::QUEUE_IDS.each do |identifier|
+        Jobs.enqueue(:run_heartbeat, queue_name: identifier, queue: identifier)
+      end
     end
   end
 end