<?php

namespace Concrete\Core\Updater\Migrations\Migrations;

use Concrete\Core\Backup\ContentImporter;
use Concrete\Core\Updater\Migrations\AbstractMigration;
use Concrete\Core\Updater\Migrations\RepeatableMigrationInterface;

class Version20190716000000 extends AbstractMigration implements RepeatableMigrationInterface
{

    /**
     * {@inheritdoc}
     *
     * @see \Concrete\Core\Updater\Migrations\AbstractMigration::upgradeDatabase()
     */
    public function upgradeDatabase()
    {
        $ci = new ContentImporter();
        $ci->importContentFile(DIR_BASE_CORE . '/config/install/upgrade/captcha.xml');
    }
}
<?php

namespace Concrete\Core\Updater\Migrations\Migrations;

use Concrete\Core\Backup\ContentImporter;
use Concrete\Core\Updater\Migrations\AbstractMigration;
use Concrete\Core\Updater\Migrations\RepeatableMigrationInterface;

class Version20190717090600 extends AbstractMigration implements RepeatableMigrationInterface
{

    /**
     * {@inheritdoc}
     *
     * @see \Concrete\Core\Updater\Migrations\AbstractMigration::upgradeDatabase()
     */
    public function upgradeDatabase()
    {
        $ci = new ContentImporter();
        $ci->importContentFile(DIR_BASE_CORE . '/config/install/upgrade/captcha.xml');
    }
}

Change Class Name for importer
Change Class Name for importer