Log scan id on delete tasks.

Issue: BB-740

Author: benzekrimaha

extensions/lifecycle/tasks/LifecycleDeleteObjectTask.js

@@ -313,6 +313,7 @@ class LifecycleDeleteObjectTask extends BackbeatTask {
             bucketName: 'target.bucket',
             objectKey: 'target.key',
             versionId: 'target.version',
+            conductorScanId: 'contextInfo.conductorScanId',
         });
 
         return async.series([