Update SftpAdapter.php

There is no reason I can find that would explain why createDirectory would call makeDirectory with Config::OPTION_VISIBILITY over Config::OPTION_DIRECTORY_VISIBILITY as in ensureParentDirectoryExists...

src/PhpseclibV2/SftpAdapter.php

@@ -187,7 +187,7 @@ public function deleteDirectory(string $path): void
 
     public function createDirectory(string $path, Config $config): void
     {
-        $this->makeDirectory($path, $config->get(Config::OPTION_VISIBILITY));
+        $this->makeDirectory($path, $config->get(Config::OPTION_DIRECTORY_VISIBILITY));
     }
 
     public function setVisibility(string $path, string $visibility): void