fix: make Project model public for server SDK spec generation

The project.updateLabels route uses AuthType::KEY which makes it
available on the server platform, but the Project model had public=false
causing it to be filtered out during spec generation.

src/Appwrite/Utopia/Response/Model/Project.php

@@ -12,7 +12,7 @@ class Project extends Model
     /**
      * @var bool
      */
-    protected bool $public = false;
+    protected bool $public = true;
 
     public function __construct()
     {