Fetch plugins from archive-ci.gerritforge.com

The Gerrit plugins are not actively built anymore for
stable-2.14 and therefore should be fetched from the
archive site.

Change-Id: Ife8be923f2189fad1fecd527587e68e4ccde219e
diff --git a/fpm/Makefile b/fpm/Makefile
index 04d7795..07ae3bf 100644
--- a/fpm/Makefile
+++ b/fpm/Makefile
@@ -1,6 +1,6 @@
 VERSION=2.14.21
 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-2.14/lastSuccessfulBuild/artifact/bazel-bin/plugins/out-of-the-box/out-of-the-box.jar
 PLUGINS_JOBS= \