- Add yoast/phpunit-polyfills ^2.0 to composer.json for WordPress test suite compatibility - Define WP_TESTS_PHPUNIT_POLYFILLS_PATH in bootstrap.php before loading WP test framework - Update actions/cache to v4 (deprecated SHA references cause failures) - Update actions/setup-java to v4 - Update codacy/codacy-analysis-cli-action to v4 tag (SHA ref not found) - Update github/codeql-action/upload-sarif to v3