Fix integration test execution on Dron

Apparently the Nextcloud server ignores tests that have `Integration` in their
fully-qualified class name, hence the backup codes integration tests were removed.
This moves them up one directory (out of `Integration`) to fix that.
Real unit tests remain in the `Unit` directory.

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

apps/twofactor_backupcodes/tests/Db/BackupCodeMapperTest.php

@@ -20,7 +20,7 @@
  *
  */
 
-namespace OCA\TwoFactorBackupCodes\Tests\Integration\Db;
+namespace OCA\TwoFactorBackupCodes\Tests\Db;
 
 use OCA\TwoFactorBackupCodes\Db\BackupCode;
 use OCA\TwoFactorBackupCodes\Db\BackupCodeMapper;

apps/twofactor_backupcodes/tests/Service/BackupCodeStorageTest.php

@@ -20,7 +20,7 @@
  *
  */
 
-namespace OCA\TwoFactorBackupCodes\Tests\Integration\Service;
+namespace OCA\TwoFactorBackupCodes\Tests\Service;
 
 use OCA\TwoFactorBackupCodes\Service\BackupCodeStorage;
 use Test\TestCase;