Fix PsalmRestarter::restart() signature

XdebugHandler v2 did not have the param type hint

Fixes #9345

src/Psalm/Internal/Fork/PsalmRestarter.php

@@ -80,7 +80,7 @@ protected function requiresRestart($default): bool
      *
      * @param string[] $command
      */
-    protected function restart(array $command): void
+    protected function restart($command): void
     {
         if ($this->required && $this->tmpIni) {
             $regex = '/^\s*(extension\s*=.*(' . implode('|', $this->disabled_extensions) . ').*)$/mi';