Laravel 8 not running tests

First of all, my current environment:

• Docker version 20.10.1
• docker-compose version 1.27.4
• MySql 8.0.21 (Docker Image)
• PHP 7.4.13 - Docker Image
• PHP 7.4.13 Local

Composer.json:

"require": {
    "php": "^7.4|^8.0",
    "doctrine/dbal": "^3.0",
    "fideloper/proxy": "^4.4",
    "fruitcake/laravel-cors": "^2.0",
    "guzzlehttp/guzzle": "7.0",
    "laravel-lang/lang": "~8.0",
    "laravel/framework": "^8.12",
    "laravel/tinker": "^2.5",
    "ramsey/uuid": "^4.1"
},
"require-dev": {
    "barryvdh/laravel-ide-helper": "^2.9",
    "facade/ignition": "^2.5",
    "fakerphp/faker": "^1.9.1",
    "laravel/breeze": "^1.0",
    "mockery/mockery": "^1.4.2",
    "nunomaduro/collision": "^5.0",
    "phpunit/phpunit": "^9.3.3"
}

I'm receiving the following errors when running:

• $ php artisan test

PHP Fatal error:  Uncaught Illuminate\Contracts\Container\BindingResolutionException: 
Target [Illuminate\Contracts\Debug\ExceptionHandler] is not instantiable. 
in /home/______/proj/php//______/vendor/laravel/framework/src/Illuminate/Container/Container.php:1038

My Test file(I didn't even finished writing my test):

<?php

namespace Tests\Unit;

use App\Models\Pessoa;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

class __________ extends TestCase
{
    use RefreshDatabase;
    protected Pessoa $pessoa;
    /**
     * A basic unit test example.
     *
     * @return void
     */
    public function testExample()
    {
        $this->pessoa = factory(Pessoa::class);

        $this->assertTrue(true);
    }
}