PHP 8.4 support

[kkmuffme]

• https://wiki.php.net/rfc/deprecations_php_8_4

• https://github.com/php/php-src/blob/php-8.4.0RC1/UPGRADING#L102 (e.g. The type of PHP_DEBUG and PHP_ZTS constants changed to bool.)

• update ProjectAnalyzer private const PHP_SUPPORTED_VERSIONS_REGEX = '^(5\.[456]|7\.[01234]|8\.[0123])(\..*)?$';

• update composer.json

• all changes done for 8.2/8.3 in PR added GitHub CI for unit tests with PHP 8.2 and 8.3 #10028 need to be done for 8.4 too

[psalm-github-bot]

Hey @kkmuffme, can you reproduce the issue on https://psalm.dev? These will be used as phpunit tests when implementing the feature or fixing this bug.