Fix test for cluster

Author: mpv1989

src/test/java/com/arangodb/ArangoCollectionTest.java

@@ -1739,6 +1739,9 @@ public void changeProperties() {
 
 	@Test
 	public void rename() {
+		if (arangoDB.getRole() != ServerRole.SINGLE) {
+			return;
+		}
 		try {
 			final CollectionEntity result = db.collection(COLLECTION_NAME).rename(COLLECTION_NAME + "1");
 			assertThat(result, is(notNullValue()));