Increase number of dcos-diagnostics workers
Increase number of dcos-diagnostics workers

Fixes: DCOS-51483
Refs: https://github.com/dcos/dcos-diagnostics/pull/103

dcos/dcos,kensipe/dcos,dcos/dcos,GoelDeepak/dcos,GoelDeepak/dcos,dcos/dcos,GoelDeepak/dcos,kensipe/dcos,kensipe/dcos,kensipe/dcos,dcos/dcos,GoelDeepak/dcos,dcos/dcos