Merge branch 'stable-2.14' into stable-2.15

* stable-2.14:
  Fetch plugins from archive-ci.gerritforge.com
  Set Gerrit to 2.14.21

Change-Id: I021c71c6363b2ec70eb11005a6ac7a81147e8926
diff --git a/fpm/Makefile b/fpm/Makefile
index 7181c6e..6182344 100644
--- a/fpm/Makefile
+++ b/fpm/Makefile
@@ -1,6 +1,6 @@
 VERSION=2.15.18
 URL=https://gerrit-releases.storage.googleapis.com/gerrit-$(VERSION).war
-CI_URL=https://gerrit-ci.gerritforge.com
+CI_URL=https://archive-ci.gerritforge.com
 RELEASE=1
 
 NAME=gerrit
@@ -19,7 +19,7 @@
 WEB_URL=https://www.gerritcodereview.com/
 
 WAR=$(BUILD_ROOT)/bin/gerrit.war
-PLUGINS_CI=https://gerrit-ci.gerritforge.com/job
+PLUGINS_CI=https://archive-ci.gerritforge.com/job
 LIBS_JOBS= \
   plugin-out-of-the-box-bazel-master-stable-2.15/lastSuccessfulBuild/artifact/bazel-bin/plugins/out-of-the-box/out-of-the-box.jar
 PLUGINS_JOBS= \