Migrate to PHP-CS-Fixer 3. Upgrade custom rules. Upgrade ruleset.

.php-cs-fixer.dist.php

@@ -0,0 +1,12 @@
+<?php
+declare(strict_types=1);
+
+$finder = PhpCsFixer\Finder::create()
+    ->in(__DIR__);
+
+return Ely\CS\Config::create([
+    // Disable "parameters" and "match" to keep compatibility with PHP 7.4
+    'trailing_comma_in_multiline' => [
+        'elements' => ['arrays', 'arguments'],
+    ],
+])->setFinder($finder);