Upgrade dropwizard.version to 2.1.0 #1565

Job	Run time
Build Reaper	2m 3s
HTTP Management (binary:4.0.6, ccm, http-api, 1, 1)	9m 29s
Memory backends (binary:3.0.25, local, ccm)	4m 58s
HTTP Management (binary:3.11.16, ccm, http-api, 1, 1)	13m 14s
Docker Image Tests (cassandra, docker)	8m 20s
Memory backends (binary:3.11.16, local, ccm)	8m 49s
Cassandra backend (binary:3.0.25, cassandra, ccm)	5m 6s
Memory backends (binary:4.0.6, local, ccm)	8m 56s
Cassandra backend (binary:3.11.16, cassandra, ccm)	5m 58s
Cassandra backend (binary:4.0.6, cassandra, ccm)	5m 12s
Flapping reapers (binary:4.0.6, cassandra, ccm, 4, 2, --tags ~@diag_event_subscriptions)	4m 50s
Sidecar (binary:3.0.25, cassandra, sidecar, 1, 1)	3m 23s
Sidecar (binary:3.11.16, cassandra, sidecar, 1, 1)	3m 41s
Each DC Availability (binary:4.0.6, cassandra, each, 1, 1)	5m 19s
Sidecar (binary:4.0.6, cassandra, sidecar, 1, 1)	4m 19s
Distributed tests (binary:3.0.25, cassandra, ccm, 2, 2)	3m 25s
Distributed tests (binary:3.11.16, cassandra, ccm, 2, 2)	3m 32s
Distributed tests (binary:4.0.6, cassandra, ccm, 2, 2)	4m 24s
Release Reaper	0s
	1h 44m 58s

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