AbstractJdbcIT test got broken by Tarantool server rework

According to tarantool/tarantool#3505 and tarantool/tarantool#3506
'box.sql.execute' is no longer supported in new Tarantool releases.

Fix AbstractJdbcIT class which used the obsolete expression. Now SQL
init scripts are performed by 'box.execute' statement superseded old
version.

Fixes: #149
See also: tarantool/tarantool#3505, tarantool/tarantool#3506

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

@@ -5,6 +5,7 @@
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.BeforeEach;
 import org.tarantool.TarantoolConnection;
+import org.tarantool.TarantoolControl;
 
 import java.io.IOException;
 import java.net.InetSocketAddress;
@@ -20,8 +21,6 @@
 import static org.tarantool.TestUtils.makeInstanceEnv;
 import static org.tarantool.jdbc.SqlTestUtils.getCreateTableSQL;
 
-import org.tarantool.TarantoolControl;
-
 //mvn -DtntHost=localhost -DtntPort=3301 -DtntUser=test -DtntPass=test verify
 public abstract class AbstractJdbcIT {
     private static final String host = System.getProperty("tntHost", "localhost");
@@ -87,7 +86,7 @@ protected static void sqlExec(String... text) {
         TarantoolConnection con = makeConnection();
         try {
             for (String cmd : text)
-                con.eval("box.sql.execute(\"" + cmd + "\")");
+                con.eval("box.execute(\"" + cmd + "\")");
         } finally {
             con.close();
         }