It breaks when regex type in `consent.disable` exists

When you have ['type' => 'regex', 'pattern' => '/.*\.mycompany\.com.*/i'], in consent.disable variable in config breaks the module.

The relevant line: https://github.com/simplesamlphp/simplesamlphp-module-consentadmin/blob/799cc2096c379a29fc90d1cd711e29718955a224/src/Controller/ConsentAdmin.php#L206

There is no type check for $disable variable.

        // Remove services, whitch have consent disabled
        if (isset($idp_metadata['consent.disable'])) {
            foreach ($idp_metadata['consent.disable'] as $disable) {
                if (array_key_exists($disable, $all_sp_metadata)) {
                    unset($all_sp_metadata[$disable]);
                }
            }
        }

Start in src/Controller/ConsentAdmin.php at the linked line and inspect how each consent.disable entry is handled when it contains the shown regex configuration. Reproduce the failure with that configuration, then verify that the module no longer breaks and that the intended service filtering still works.