Merge pull request #414 from ergebnis/feature/php74

Enhancement: Use `Php74` rule set

.php-cs-fixer.php

@@ -26,7 +26,7 @@
 
 $license->save();
 
-$config = PhpCsFixer\Config\Factory::fromRuleSet(new PhpCsFixer\Config\RuleSet\Php73($license->header()), [
+$config = PhpCsFixer\Config\Factory::fromRuleSet(new PhpCsFixer\Config\RuleSet\Php74($license->header()), [
     'escape_implicit_backslashes' => false,
     'mb_str_functions' => false,
 ]);