refactor: Update return types ReflectionHelper

Author: neznaika0

system/Test/ReflectionHelper.php

@@ -31,8 +31,7 @@ trait ReflectionHelper
      * @param object|string $obj    object or class name
      * @param string        $method method name
      *
-     * @return         Closure
-     * @phpstan-return Closure(mixed ...$args): mixed
+     * @return Closure(mixed ...$args): mixed
      *
      * @throws ReflectionException
      */

tests/system/Commands/Utilities/ConfigCheckTest.php

@@ -89,7 +89,9 @@ public function testCommandConfigCheckNonexistentClass(): void
 
     public function testConfigCheckWithKintEnabledUsesKintD(): void
     {
-        /** @var Closure(object): string $command */
+        /**
+         * @var Closure(mixed...): string
+         */
         $command = $this->getPrivateMethodInvoker(
             new ConfigCheck(service('logger'), service('commands')),
             'getKintD',
@@ -105,7 +107,9 @@ public function testConfigCheckWithKintEnabledUsesKintD(): void
 
     public function testConfigCheckWithKintDisabledUsesVarDump(): void
     {
-        /** @var Closure(object): string $command */
+        /**
+         * @var Closure(mixed...): string
+         */
         $command = $this->getPrivateMethodInvoker(
             new ConfigCheck(service('logger'), service('commands')),
             'getVarDump',