Merge branch 'stable-3.4'

* stable-3.4:
  Update kafka-client 2.1.0 -> 2.1.1

Change-Id: I4f8f9544692330c45fd2ace7d5f9e806324f2986
diff --git a/external_plugin_deps.bzl b/external_plugin_deps.bzl
index 8a4bf7d..04a9ccf 100644
--- a/external_plugin_deps.bzl
+++ b/external_plugin_deps.bzl
@@ -3,8 +3,8 @@
 def external_plugin_deps():
     maven_jar(
         name = "kafka-client",
-        artifact = "org.apache.kafka:kafka-clients:2.1.0",
-        sha1 = "34d9983705c953b97abb01e1cd04647f47272fe5",
+        artifact = "org.apache.kafka:kafka-clients:2.1.1",
+        sha1 = "a7b72831768ccfd69128385130409ae1a0e52f5f",
     )
 
     maven_jar(