SpannerRefDatabaseTest: use common setUp/tearDown method names

Change-Id: I60b5a6fa6107d4583d515ca02b63802faf523194

src/test/java/com/googlesource/gerrit/plugins/spannerrefdb/SpannerRefDatabaseTest.java

diff --git a/src/test/java/com/googlesource/gerrit/plugins/spannerrefdb/SpannerRefDatabaseTest.java b/src/test/java/com/googlesource/gerrit/plugins/spannerrefdb/SpannerRefDatabaseTest.java
index 826a409..a43d2a5 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/spannerrefdb/SpannerRefDatabaseTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/spannerrefdb/SpannerRefDatabaseTest.java
@@ -30,13 +30,13 @@
   private SpannerRefDatabase refdb;
 
   @Before
-  public void setup() throws Exception {
+  public void setUp() throws Exception {
     emulator = new EmulatedSpannerRefDb();
     refdb = emulator.getSpannerRefDatabase();
   }
 
   @After
-  public void cleanup() {
+  public void tearDown() {
     emulator.cleanup();
   }