Update dcos-diagnostics
Update dcos-diagnostics

Fixes: DCOS_OSS-4322

kensipe/dcos,GoelDeepak/dcos,dcos/dcos,mesosphere-mergebot/mergebot-test-dcos,mesosphere-mergebot/dcos,surdy/dcos,dcos/dcos,mesosphere-mergebot/dcos,mesosphere-mergebot/dcos,mesosphere-mergebot/dcos,GoelDeepak/dcos,mesosphere-mergebot/mergebot-test-dcos,dcos/dcos,surdy/dcos,mesosphere-mergebot/mergebot-test-dcos,surdy/dcos,dcos/dcos,GoelDeepak/dcos,kensipe/dcos,GoelDeepak/dcos,surdy/dcos,dcos/dcos,kensipe/dcos,kensipe/dcos,mesosphere-mergebot/mergebot-test-dcos