Add PHP 8.4 nightly to tests

[joanhey]

So we can find problems with time.

PHP 8.4 Timetable
https://wiki.php.net/todo/php84

WIP

[joanhey]

Pest still don't work with PHP 8.4
pestphp/pest#1199

And more packages have problems with the explicit nullable type from PHP 8.4
composer/composer#12051

EDIT: Pest is working OK now 19/10/2024 pestphp/pest#1199

[joanhey]

We still have deprecated messages from the Mockery 2 lib.
Mockery 1.6 is fixed for PHP 8.4, but we use v2.0.x that it isn't updated for the last 7 months.
We need to check the differences and change to v1.6. Or wait if they fix v2.0.x than it is a dev version.

[joanhey]

We have another problem.
Workerman v4.1 also have deprecations:

• explicit nullable type is only fixable with PHP 7.1 and now only require PHP 7.0
• Constant E_STRICT is deprecated in /home/runner/work/AdapterMan/AdapterMan/vendor/workerman/workerman/Worker.php on line 518

[walkor]

We have another problem. Workerman v4.1 also have deprecations:

• explicit nullable type is only fixable with PHP 7.1 and now only require PHP 7.0
• Constant E_STRICT is deprecated in /home/runner/work/AdapterMan/AdapterMan/vendor/workerman/workerman/Worker.php on line 518

Perhaps we should raise the minimum PHP version for Workerman v4.1 to 8.0.

[joanhey]

Never for 4.1, but of course for v4.2
We need to change the composer json, and is ready.