minor #34308 [Security] Avoid unnecessary usage of Reflection (chalasr)

This PR was merged into the 4.4 branch.

Discussion
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[Security] Avoid unnecessary usage of Reflection

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

Commits
-------

2377418 [Security] Avoid unnecessary usage of Reflection

src/Symfony/Component/Security/Core/Encoder/EncoderFactory.php

@@ -78,9 +78,7 @@ private function createEncoder(array $config, bool $isExtra = false): PasswordEn
             throw new \InvalidArgumentException(sprintf('"arguments" must be set in %s.', json_encode($config)));
         }
 
-        $reflection = new \ReflectionClass($config['class']);
-
-        $encoder = $reflection->newInstanceArgs($config['arguments']);
+        $encoder = new $config['class'](...$config['arguments']);
 
         if ($isExtra || !\in_array($config['class'], [NativePasswordEncoder::class, SodiumPasswordEncoder::class], true)) {
             return $encoder;