Merge branch 'stable-2.16' into stable-3.0

* stable-2.16:
  Use Gerrit 2.16.16 in Dockerfile
  Upgrade wiremock to 2.26.3

Change-Id: Iaf37978f25e06e525d9f12013b28a65ffb066abe
diff --git a/external_plugin_deps.bzl b/external_plugin_deps.bzl
index b364639..ca33b60 100644
--- a/external_plugin_deps.bzl
+++ b/external_plugin_deps.bzl
@@ -3,8 +3,8 @@
 def external_plugin_deps():
     maven_jar(
         name = "wiremock",
-        artifact = "com.github.tomakehurst:wiremock-standalone:2.26.2",
-        sha1 = "b4082b23cb703b9ac83c1457773ad814eb1dd901",
+        artifact = "com.github.tomakehurst:wiremock-standalone:2.26.3",
+        sha1 = "245c6efae2cbcb4e4f3457caf3d1c030cbaf2eb5",
     )
 
     maven_jar(