Increase timeout in BulkManipulation.IncrementTimestampVersion test

Author: hazzik

src/NHibernate.Test/Hql/Ast/BulkManipulation.cs

@@ -431,7 +431,7 @@ public void IncrementTimestampVersion()
 
 			DateTime initialVersion = entity.Version;
 
-			Thread.Sleep(300);
+			Thread.Sleep(1300);
 
 			s = OpenSession();
 			t = s.BeginTransaction();