[Reporting] Failed jobs should log when job status is synced in ES

[tsullivan]

Successful reporting jobs log when their output was successfully saved in Elasticsearch:

server    log   [22:10:48.501] [info][queue-job][reporting] Successfully queued job: k068fp8q21uzcbae0ceokj3j
server    log   [22:10:49.639] [info][esqueue][queue-worker][reporting] k067sy5n21uzcbae0c5s88ga - Claimed job k068fp8q21uzcbae0ceokj3j
server    log   [22:10:49.639] [info][esqueue][queue-worker][reporting] k067sy5n21uzcbae0c5s88ga - Starting job
server    log   [22:10:50.232] [info][PNG][execute][k068fp8q21uzcbae0ceokj3j][reporting] opening url ### Big URL
server    log   [22:10:58.073] [info][PNG][execute][k068fp8q21uzcbae0ceokj3j][reporting] handled 72 page requests
server    log   [22:10:58.914] [info][PNG][execute][k068fp8q21uzcbae0ceokj3j][reporting] found 2 rendered elements in the DOM
server    log   [22:10:59.922] [info][PNG][execute][k068fp8q21uzcbae0ceokj3j][reporting] taking screenshots
server    log   [22:11:00.735] [info][PNG][execute][k068fp8q21uzcbae0ceokj3j][reporting] screenshots taken: 1
server    log   [22:11:00.737] [info][esqueue][queue-worker][reporting] k067sy5n21uzcbae0c5s88ga - Job execution completed successfully
server    log   [22:11:00.842] [info][esqueue][queue-worker][reporting] k067sy5n21uzcbae0c5s88ga - Job data saved successfully: /.reporting-2019.09.01/_doc/k068fp8q21uzcbae0ceokj3j

Unsuccessful jobs are logging the error message encountered, but behind the scenes, Reporting also has to update the job document in Elasticsearch with the failed status and failure reason. Given that failures mean that things are flaky to begin with, we really want to take that event out of behind-the-scenes.

server    log   [22:09:34.099] [info][queue-job][reporting] Successfully queued job: k068e3tq21uzcbae0c7vi213
server    log   [22:09:34.346] [info][esqueue][queue-worker][reporting] k067sy5n21uzcbae0c5s88ga - Claimed job k068e3tq21uzcbae0c7vi213
server    log   [22:09:34.347] [info][esqueue][queue-worker][reporting] k067sy5n21uzcbae0c5s88ga - Starting job
server   error  [22:09:34.370] [error][execute][k068e3tq21uzcbae0c7vi213][printable_pdf][reporting] Error: Unable to generate report. Blah blah blah.
    #### Stack trace

Example screenshot showing existing logs for bad job and good job:

[elasticmachine]

Pinging @elastic/kibana-stack-services

[tsullivan]

Should look like this when there's a failure: