Getting this error on running integration tests locally:
Using PHP 8.2.11 PHPUnit 9.5.28 by Sebastian Bergmann and contributors. Creation of dynamic property WikimediaRdbmsDatabaseMySQL::$_originalTablePrefix is deprecated .../mediawiki/tests/phpunit/MediaWikiIntegrationTestCase.php:1727 .../mediawiki/tests/phpunit/MediaWikiIntegrationTestCase.php:1788 .../mediawiki/tests/phpunit/MediaWikiIntegrationTestCase.php:1743 Creation of dynamic property WikimediaRdbmsDatabaseMySQL::$_hasDataForTestClass is deprecated .../mediawiki/tests/phpunit/MediaWikiIntegrationTestCase.php:531 .../mediawiki/tests/phpunit/MediaWikiIntegrationTestCase.php:671 .../mediawiki/tests/phpunit/MediaWikiIntegrationTestCase.php:611
It goes away only by adding
#[\AllowDynamicProperties]
on the Database class.