fix down method

Author: steven-fox

database/migrations/2025_04_30_135437_alter_users_table.php

@@ -16,7 +16,7 @@ public function up(): void
     public function down(): void
     {
         Schema::table('users', function (Blueprint $table) {
-            $table->string('name')->nullable();
+            $table->string('name')->change();
         });
     }
 };