Clean up unused application records (#24871)

app/workers/scheduler/vacuum_scheduler.rb

@@ -22,6 +22,7 @@ class Scheduler::VacuumScheduler
       preview_cards_vacuum,
       backups_vacuum,
       access_tokens_vacuum,
+      applications_vacuum,
       feeds_vacuum,
       imports_vacuum,
     ]
@@ -55,6 +56,10 @@ class Scheduler::VacuumScheduler
     Vacuum::ImportsVacuum.new
   end
 
+  def applications_vacuum
+    Vacuum::ApplicationsVacuum.new
+  end
+
   def content_retention_policy
     ContentRetentionPolicy.current
   end