Bump up metrics service related dependencies from 3.1.2 to 3.2.2

Change-Id: Ic9a1eae0fb50cf551b750468759491bb87cb84c9
diff --git a/lib/deps.json b/lib/deps.json
index 5ef6f14..80feb10 100644
--- a/lib/deps.json
+++ b/lib/deps.json
@@ -154,11 +154,11 @@
     "junit": "mvn:junit:junit:4.12",
     "kryo": "mvn:com.esotericsoftware:kryo:4.0.0",
     "mapdb": "mvn:org.mapdb:mapdb:1.0.9",
-    "metrics-core": "mvn:io.dropwizard.metrics:metrics-core:3.1.0",
-    "metrics-ganglia": "mvn:io.dropwizard.metrics:metrics-ganglia:3.1.2",
-    "metrics-graphite": "mvn:io.dropwizard.metrics:metrics-graphite:3.1.2",
+    "metrics-core": "mvn:io.dropwizard.metrics:metrics-core:3.2.2",
+    "metrics-ganglia": "mvn:io.dropwizard.metrics:metrics-ganglia:3.2.2",
+    "metrics-graphite": "mvn:io.dropwizard.metrics:metrics-graphite:3.2.2",
     "metrics-influxdb": "mvn:com.izettle:metrics-influxdb:1.1.1",
-    "metrics-json": "mvn:io.dropwizard.metrics:metrics-json:3.1.0",
+    "metrics-json": "mvn:io.dropwizard.metrics:metrics-json:3.2.2",
     "minimal-json": "mvn:com.eclipsesource.minimal-json:minimal-json:0.9.4",
     "minlog": "mvn:com.esotericsoftware:minlog:1.3.0",
     "netty": "mvn:io.netty:netty:3.10.5.Final",