Adding the pull-replication extension for multi-site

The multi-site test environment should verify E2E that the
connectivity between pull-replication and the refs filtering
works as expected.

Change-Id: Ib31e3f17dbc17267f8a06602433a1341cd4a996d

setup_local_env/configs/gerrit.config

diff --git a/setup_local_env/configs/gerrit.config b/setup_local_env/configs/gerrit.config
index c92c60d..a4d68c2 100644
--- a/setup_local_env/configs/gerrit.config
+++ b/setup_local_env/configs/gerrit.config
@@ -5,6 +5,7 @@
     serverId = 69ec38f0-350e-4d9c-96d4-bc956f2faaac
     canonicalWebUrl = $GERRIT_CANONICAL_WEB_URL
     installModule = com.gerritforge.gerrit.eventbroker.BrokerApiModule # events-broker module to setup BrokerApi dynamic item
+    installModule = com.googlesource.gerrit.plugins.replication.pull.ReplicationExtensionPointModule
     installModule = com.googlesource.gerrit.plugins.multisite.Module # multi-site needs to be a gerrit lib
     installDbModule = com.googlesource.gerrit.plugins.multisite.GitModule
     instanceId = $INSTANCE_ID