Bump simpleclient_dropwizard from 0.4.0 to 0.6.0 in /src/server
Bump simpleclient_dropwizard from 0.4.0 to 0.6.0 in /src/server

Bumps [simpleclient_dropwizard](https://github.com/prometheus/client_java) from 0.4.0 to 0.6.0.
- [Release notes](https://github.com/prometheus/client_java/releases)
- [Commits](https://github.com/prometheus/client_java/compare/parent-0.4.0...parent-0.6.0)
thelastpickle/cassandra-reaper,thelastpickle/cassandra-reaper,thelastpickle/cassandra-reaper,thelastpickle/cassandra-reaper,thelastpickle/cassandra-reaper