Fix GeneratorCacheWarmer with Symfony 7

Author: tobias-93

CacheWarmer/GeneratorCacheWarmer.php

@@ -19,7 +19,7 @@ public function __construct(protected GeneratorCacheBuilder $generatorCacheBuild
     {
     }
 
-    public function warmUp(string $cacheDir): array
+    public function warmUp(string $cacheDir, string $buildDir = null): array
     {
         $this->generatorCacheBuilder->buildFull();