sudo -u apache wp core update --version=6.1.1 --force Updating to version 6.1.1 (ja)... PHP Fatal error: Declaration of WP_CLI\Core\CoreUpgrader::download_package($package, $check_signatures = true) must be compatible with WP_Upgrader::download_package($package, $check_signatures = false, $hook_extra = []) in phar:///usr/bin/wp/vendor/wp-cli/core-command/src/WP_CLI/Core/CoreUpgrader.php on line 30
wp-cli の更新で解消した。2.4.0 → 2.7.1
sudo wp cli update