[php] Mixphp update to PHP/8.4

[joanhey]

Also update:

• Event 3.1.14
• Swoole 6.0.2
• Ubuntu 24.04

With Swoole show warnings:

mixphp-swoole-mysql: 2025-07-25 08:34:07.868601  INFO  Start swoole server
mixphp-swoole-mysql: Deprecated: Mix\Database\Connection::queryOne(): Implicitly marking parameter $fetchStyle as nullable is deprecated, the explicit nullable type must be used instead in /mixphp/vendor/mix/database/src/Connection.php on line 14
mixphp-swoole-mysql: Deprecated: Mix\Database\Connection::queryAll(): Implicitly marking parameter $fetchStyle as nullable is deprecated, the explicit nullable type must be used instead in /mixphp/vendor/mix/database/src/Connection.php on line 19
mixphp-swoole-mysql: Deprecated: Mix\Database\AbstractConnection::queryOne(): Implicitly marking parameter $fetchStyle as nullable is deprecated, the explicit nullable type must be used instead in /mixphp/vendor/mix/database/src/AbstractConnection.php on line 456
mixphp-swoole-mysql: Deprecated: Mix\Database\AbstractConnection::queryAll(): Implicitly marking parameter $fetchStyle as nullable is deprecated, the explicit nullable type must be used instead in /mixphp/vendor/mix/database/src/AbstractConnection.php on line 467

Created issue mix-php/mix#138 and fix

#9408