fix: detected deprecations in use

Author: vladimirgrishin

src/Rules/DefaultRules.php

@@ -17,7 +17,7 @@ public function getRules(bool $risky): array
             * https://github.com/PHP-CS-Fixer/PHP-CS-Fixer/blob/master/doc/ruleSets/PER-CS2.0.rst
             * https://github.com/PHP-CS-Fixer/PHP-CS-Fixer/blob/master/src/RuleSet/Sets/PERCS2x0Set.php
             */
-            '@PER-CS2.0' => true,
+            '@PER-CS2x0' => true,
 
             /*
              * @PER-CS2.0 Overrides
@@ -129,6 +129,8 @@ public function getRules(bool $risky): array
                 'property' => null,
             ],
         ] + ($risky ? [
+            '@PER-CS2x0:risky' => true,
+
             /*
              * @Symfony:risky
              */