feat: adds --retry option

tests/Unit/Plugins/Retry.php

@@ -0,0 +1,15 @@
+<?php
+
+use Pest\Plugins\Retry;
+
+beforeEach(fn () => Retry::$retrying = false);
+
+afterEach(fn () => Retry::$retrying = false);
+
+it('retries if --retry argument is used', function () {
+    $retry = new Retry();
+
+    $retry->handleArguments(['--retry']);
+
+    expect(Retry::$retrying)->toBeTrue();
+});