Follow laravel upgrade guide

database/seeders/BookmarksTableSeeder.php

@@ -2,10 +2,8 @@
 
 namespace Database\Seeders;
 
-use Illuminate\Support\Carbon;
 use App\Models\{Bookmark, Tag};
 use Illuminate\Database\Seeder;
-use Illuminate\Support\Facades\DB;
 
 class BookmarksTableSeeder extends Seeder
 {
@@ -16,17 +14,8 @@ class BookmarksTableSeeder extends Seeder
      */
     public function run()
     {
-        Bookmark::factory(10)->create();
-        factory(Bookmark::class, 10)->create()->each(function ($bookmark) {
-            $bookmark->tags()->save(factory(Tag::class)->make());
-
-            $now = Carbon::now()->subDays(rand(2, 12));
-            DB::table('bookmarks')
-                ->where('id', $bookmark->id)
-                ->update([
-                    'created_at' => $now->toDateTimeString(),
-                    'updated_at' => $now->toDateTimeString(),
-                ]);
-        });
+        Bookmark::factory(10)
+            ->has(Tag::factory()->count(1))
+            ->create();
     }
 }