Update to Laravel 8

Co-authored-by: Matthew Penner <me@matthewp.io>

bootstrap/app.php

@@ -12,7 +12,7 @@
 */
 
 $app = new Illuminate\Foundation\Application(
-    realpath(__DIR__ . '/../')
+    $_ENV['APP_BASE_PATH'] ?? dirname(__DIR__)
 );
 
 /*

bootstrap/tests.php

@@ -1,5 +1,6 @@
 <?php
 
+use NunoMaduro\Collision\Provider;
 use Illuminate\Contracts\Console\Kernel;
 use Symfony\Component\Console\Output\ConsoleOutput;
 
@@ -15,6 +16,10 @@ $kernel = $app->make(Kernel::class);
  */
 $kernel->bootstrap();
 
+// Register the collision service provider so that errors during the test
+// setup process are output nicely.
+(new Provider)->register();
+
 $output = new ConsoleOutput;
 
 if (config('database.default') !== 'testing') {