add missed blank lines

Author: nicktorwald

src/test/java/org/tarantool/jdbc/JdbcDriverTest.java

@@ -31,6 +31,7 @@
 import java.util.Properties;
 
 public class JdbcDriverTest {
+
     @Test
     public void testParseQueryString() throws Exception {
         SQLDriver drv = new SQLDriver();

src/test/java/org/tarantool/jdbc/JdbcExceptionHandlingTest.java

@@ -41,6 +41,7 @@
 import java.util.Properties;
 
 public class JdbcExceptionHandlingTest {
+
     /**
      * Simulates meta parsing error: missing "name" field in a space format for the primary key.
      *