fix: PHPStan errors

Author: ddevsr

system/Commands/Utilities/PhpIniCheck.php

@@ -80,7 +80,7 @@ public function run(array $params)
             return EXIT_ERROR;
         }
 
-        $argument = isset($params[0]) && $params[0] ? $params[0] : null;
+        $argument = isset($params[0]) ? $params[0] : null;
 
         CheckPhpIni::run(argument: $argument);
 

tests/system/Commands/Utilities/PhpIniCheckTest.php

@@ -37,7 +37,7 @@ protected function tearDown(): void
         parent::tearDown();
     }
 
-    protected function getBuffer()
+    protected function getBuffer(): string
     {
         return $this->getStreamFilterBuffer();
     }