[ELASTIC-135] Upgrade Elastic base tech to 5.6.0 (#1621)
[ELASTIC-135] Upgrade Elastic base tech to 5.6.0 (#1621)

- Upgrade Support Diagnostics tool to 6.0
mesosphere/dcos-commons,vishnu2kmohan/dcos-commons,mesosphere/dcos-commons,mesosphere/dcos-commons,mesosphere/dcos-commons,vishnu2kmohan/dcos-commons,mesosphere/dcos-commons,vishnu2kmohan/dcos-commons,vishnu2kmohan/dcos-commons,vishnu2kmohan/dcos-commons