JobsController: rescue StandardError

rescuing StandardError is preferred over Exception since there are some
Exception we might not want to rescue from.

app/controllers/jobs_controller.rb

@@ -116,7 +116,7 @@ def ping
         raise "Timestamp does not match"
       end
       @job = Job.find_by_public_id!(array[1])
-    rescue Exception => e
+    rescue StandardError => e
       puts e.message
       raise ActiveRecord::RecordNotFound.new('Not Found')
     end