Wrap Scheduler task execution with Rails reloader instead of `execu…

…tor` to avoid database connection changing during code reload (#389)

lib/good_job/scheduler.rb

@@ -230,7 +230,7 @@ def create_executor
     # @return [void]
     def create_task(delay = 0)
       future = Concurrent::ScheduledTask.new(delay, args: [performer], executor: executor, timer_set: timer_set) do |thr_performer|
-        Rails.application.executor.wrap do
+        Rails.application.reloader.wrap do
           thr_performer.next
         end
       end