Upgrade metrics-graphite to 4.0.2

Change-Id: I979f192f76f3f9f260a6a72a19f174ff8ccfe272
Signed-off-by: Jacek Centkowski <jcentkowski@collab.net>
diff --git a/external_plugin_deps.bzl b/external_plugin_deps.bzl
index 0017adc..aac37f1 100644
--- a/external_plugin_deps.bzl
+++ b/external_plugin_deps.bzl
@@ -3,6 +3,6 @@
 def external_plugin_deps():
   maven_jar(
     name = 'metrics_graphite',
-    artifact = 'io.dropwizard.metrics:metrics-graphite:3.2.2',
-    sha1 = '908e8cbec1bbdb2f4023334e424c7de2832a95af',
+    artifact = 'io.dropwizard.metrics:metrics-graphite:4.0.2',
+    sha1 = 'c58939a16560d60d3f3d7fe941d2dc9f41ba3b6c',
   )