Laravel 12.* upgrade

[jackbayliss]

This closes #22

Adds the following:

• This ensures CI tests run on PR requests ( wont here as it's not merged yet :) )
• Updates the CI actions - as they were using v1 items
• Applies the Laravel shift pr changes

See the tests here

I've checked on a laravel 12 project, and seems good to me :

php artisan --version
Laravel Framework 12.3.0
php vendor/bin/phpunit --filter ApiTest
PHPUnit 11.5.15 by Sebastian Bergmann and contributors.

Runtime:       PHP 8.3.8
Configuration: /var/www/vhosts/app/phpunit.xml.dist

.........                                                           9 / 9 (100%)

Detected 1 test where the duration exceeded the maximum duration.

1. 00:03.427 (00:02.000) Tests\Feature\Api\ApiTest::test_open_api

Time: 00:03.837, Memory: 124.50 MB

OK (9 tests, 352 assertions)

[luisdalmolin]

Thanks!