Use beginless range for query instead of < ?

Author: bensheldon

app/models/solid_queue/process/prunable.rb

@@ -4,7 +4,7 @@ module SolidQueue::Process::Prunable
   extend ActiveSupport::Concern
 
   included do
-    scope :prunable, -> { where("last_heartbeat_at <= ?", SolidQueue.process_alive_threshold.ago) }
+    scope :prunable, -> { where(last_heartbeat_at: ..SolidQueue.process_alive_threshold.ago) }
   end
 
   class_methods do