feat: rewrites --dirty support

src/Support/DirtyTestCaseFilter.php

@@ -1,47 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Pest\Support;
-
-use Pest\Contracts\TestCaseFilter;
-use Symfony\Component\Process\Process;
-
-final class DirtyTestCaseFilter implements TestCaseFilter
-{
-    /**
-     * @var array<string>
-     */
-    private array $changedFiles = [];
-
-    public function __construct(private string $projectRoot)
-    {
-        $this->loadDiff();
-    }
-
-    public function canLoad(string $suiteClassFile): bool
-    {
-        $relativePath = str_replace($this->projectRoot, '', $suiteClassFile);
-
-        if (str_starts_with($relativePath, '/')) {
-            $relativePath = substr($relativePath, 1);
-        }
-
-        return in_array($relativePath, $this->changedFiles, true);
-    }
-
-    private function loadDiff(): void
-    {
-        $process = new Process([
-            'git',
-            'diff',
-            '--name-only',
-            'HEAD',
-            '--',
-            '*.php',
-        ]);
-        $process->run();
-
-        $this->changedFiles = explode(PHP_EOL, trim($process->getOutput()));
-    }
-}