fix metadata test

Author: chernser

jdbc-v2/src/test/java/com/clickhouse/jdbc/PreparedStatementTest.java

@@ -611,7 +611,7 @@ void testGetMetadata(String sql, int colCountBeforeExecution, Object[] values,
     @DataProvider(name = "testGetMetadataDataProvider")
     static Object[][] testGetMetadataDataProvider() {
         return new Object[][] {
-                {"INSERT INTO `%s` VALUES (?, ?, ?)", 0, new Object[]{"test", 0.3f, 0.4f}, 0},
+                {"INSERT INTO `%s` VALUES (?, ?, ?)", 3, new Object[]{"test", 0.3f, 0.4f}, 3},
                 {"SELECT * FROM `%s`", 3, null, 3},
                 {"SHOW TABLES", 0, null, 1}
         };