test: rename folder name to exact same name as DB driver

Author: kenjis

tests/system/Database/Live/SQLite/AlterTableTest.php renamed to tests/system/Database/Live/SQLite3/AlterTableTest.php

@@ -9,7 +9,7 @@
  * the LICENSE file that was distributed with this source code.
  */
 
-namespace CodeIgniter\Database\Live\SQLite;
+namespace CodeIgniter\Database\Live\SQLite3;
 
 use CodeIgniter\Database\Exceptions\DataException;
 use CodeIgniter\Database\SQLite3\Forge;

tests/system/Database/Live/SQLite/GetFieldDataTest.php renamed to tests/system/Database/Live/SQLite3/GetFieldDataTest.php

@@ -9,7 +9,7 @@
  * the LICENSE file that was distributed with this source code.
  */
 
-namespace CodeIgniter\Database\Live\SQLite;
+namespace CodeIgniter\Database\Live\SQLite3;
 
 use CodeIgniter\Database\SQLite3\Connection;
 use CodeIgniter\Database\SQLite3\Forge;

tests/system/Database/Live/SQLite/GetIndexDataTest.php renamed to tests/system/Database/Live/SQLite3/GetIndexDataTest.php

@@ -9,7 +9,7 @@
  * the LICENSE file that was distributed with this source code.
  */
 
-namespace CodeIgniter\Database\Live\SQLite;
+namespace CodeIgniter\Database\Live\SQLite3;
 
 use CodeIgniter\Database\SQLite3\Connection;
 use CodeIgniter\Database\SQLite3\Forge;