Rename setUp to setupTestRepo because of implicit override

The test class does not want to override the LocalDiskRepositoryTestCase
setUp method: use a different name to avoid skipping the super-class
setup execution.

Change-Id: I2634a285033a60693fbc0fdc72375f718a1e4141
diff --git a/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/dfsrefdb/MultisiteReplicationPushFilterTest.java b/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/dfsrefdb/MultisiteReplicationPushFilterTest.java
index 7e4593b..f2b57a1 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/dfsrefdb/MultisiteReplicationPushFilterTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/dfsrefdb/MultisiteReplicationPushFilterTest.java
@@ -68,7 +68,7 @@
   private TestRepository<InMemoryRepository> repo;
 
   @Before
-  public void setUp() throws Exception {
+  public void setupTestRepo() throws Exception {
     InMemoryRepository inMemoryRepo =
         gitRepositoryManager.createRepository(A_TEST_PROJECT_NAME_KEY);
     repo = new TestRepository<>(inMemoryRepo);