syntax error vendor/spatie/laravel-webhook-client/src/WebhookClientServiceProvider.php:28

[jbov]

I now receive this error on my local version after composer global update. Nothing changed in my code and everything worked properly before the composer update.

This is line 28:
Route::macro('webhooks', fn (string $url, string $name = 'default') => Route::post($url, '\Spatie\WebhookClient\WebhookController')->name("webhook-client-{$name}"));

this is a laravel 6 project.

I get this error in artisan:

Symfony\Component\Debug\Exception\FatalThrowableError : syntax error

at /Users/.../Sites/ws/vendor/spatie/laravel-webhook-client/src/WebhookClientServiceProvider.php:28
24| DIR.'/../database/migrations/create_webhook_calls_table.php.stub' => database_path("migrations/{$timestamp}_create_webhook_calls_table.php"),
25| ], 'migrations');
26| }
27|

28| Route::macro('webhooks', fn (string $url, string $name = 'default') => Route::post($url, '\Spatie\WebhookClient\WebhookController')->name("webhook-client-{$name}"));
29|
30| $this->app->singleton(WebhookConfigRepository::class, function () {
31| $configRepository = new WebhookConfigRepository();
32|

Exception trace:

1 Composer\Autoload\includeFile("/Users/..../Sites/ws/vendor/composer/../spatie/laravel-webhook-client/src/WebhookClientServiceProvider.php")
/Users/..../Sites/ws/vendor/composer/ClassLoader.php:322

2 Composer\Autoload\ClassLoader::loadClass("Spatie\WebhookClient\WebhookClientServiceProvider")
[internal]:0

Any clue as to how to fix this issue? Thank you. - Jon