PHP 8.5 support

This commit adds support for building a docker image based on PHP 8.5
(RC). It also removes some unused code in tests that was triggering
deprecation warnings. For similar deprecation warnings coming from
testbench we have a temporary patch script until this is resolved
upstream.

This commit also adds logic to the DisallowSqliteAttach feature
leveraging the new native setAuthorizer() method, instead of loading
a compiled extension.

We also remove the unused `php` parameter from ci.yml

tests/TestCase.php

@@ -144,9 +144,6 @@ abstract class TestCase extends \Orchestra\Testbench\TestCase
                 'prefix_indexes' => true,
                 'strict' => true,
                 'engine' => null,
-                'options' => extension_loaded('pdo_mysql') ? array_filter([
-                    PDO::MYSQL_ATTR_SSL_CA => env('MYSQL_ATTR_SSL_CA'),
-                ]) : [],
             ],
             'database.connections.sqlite.database' => ':memory:',
             'database.connections.mysql.charset' => 'utf8mb4',