TASK: Fix last phpstan error

Author: sabbelasichon

phpstan-baseline.neon

@@ -1,5 +1,3 @@
-includes:
-    - phpstan-baseline.neon
 parameters:
   level: 8
   editorUrl: 'phpstorm://open?file=%%file%%&line=%%line%%'

phpstan.neon

@@ -105,8 +105,13 @@ private function initializeContainer(): void
 
         if (file_exists($file)) {
             require_once $file;
+            if (!class_exists(\ProjectServiceContainer::class, false)) {
+                throw new \UnexpectedValueException('Class ProjectServiceContainer does not exist');
+            }
+
             /** @var Container $container */
             $container = new \ProjectServiceContainer();
+
         } else {
             $container = new ContainerBuilder();
             $loader = new PhpFileLoader($container, new FileLocator());