ReplicationIT#shouldReplicateNewBranch: Create branch on local project

The test creates the branch directly on the target project, which
defeats the point of the replication test since the branch is not
actually getting replicated there.

Fix it to create the branch on the local project, which was the
original intention when the test was added in change I67aa8b4ae.

Change-Id: I517f3f49241207861e2f5158c08f6193a63d8916
diff --git a/src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationIT.java b/src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationIT.java
index 0b57f11..a29d151 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationIT.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationIT.java
@@ -128,7 +128,7 @@
     String master = "refs/heads/master";
     BranchInput input = new BranchInput();
     input.revision = master;
-    gApi.projects().name(targetProject.get()).branch(newBranch).create(input);
+    gApi.projects().name(project.get()).branch(newBranch).create(input);
 
     try (Repository repo = repoManager.openRepository(targetProject)) {
       waitUntil(() -> checkedGetRef(repo, newBranch) != null);