test fix

Author: rashtao

driver/src/test/java/com/arangodb/ArangoDBAsyncTest.java

@@ -97,7 +97,7 @@ void createWithNotNormalizedName(ArangoDBAsync arangoDB) throws ExecutionExcepti
 
         final String dbName = "testDB-\u006E\u0303\u00f1";
         String normalized = UnicodeUtils.normalize(dbName);
-        arangoDB.createDatabase(normalized);
+        arangoDB.createDatabase(normalized).get();
         arangoDB.db(normalized).drop().get();
 
         Throwable thrown = catchThrowable(() -> arangoDB.createDatabase(dbName).get()).getCause();