Improve logging in testInferDataType42P18

In case of failure, that does not match expectations, log the failure.

Signed-off-by: Thomas Segismont <tsegismont@gmail.com>

Author: tsegismont

vertx-pg-client/src/test/java/io/vertx/pgclient/PreparedStatementTestBase.java

@@ -514,7 +514,9 @@ private <T> void testInferDataType42P18(TestContext ctx, Class<T> type, T value,
         .flatMap(tx -> conn.preparedQuery("SELECT CONCAT('HELLO ', $1)").execute(Tuple.of(value))
           .eventually(() -> conn.close())
           .onComplete(ctx.asyncAssertFailure(failure -> {
-            ctx.assertTrue(hasSqlstateCode(failure, "42P18"));
+            if (!hasSqlstateCode(failure, "42P18")) {
+              ctx.fail(failure);
+            }
           })));
     }));
   }