Issue #3230668: Split out Composer Stager wiring into Package Manager submodule

tests/src/Functional/FileSystemOperationsTest.php

@@ -65,7 +65,7 @@ class FileSystemOperationsTest extends BrowserTestBase {
     // will otherwise default to the site path being used for the test site,
     // which doesn't exist in the fake site fixture.
     $cleaner = new Cleaner(
-      $this->container->get('package_manager.file_system'),
+      $this->container->get('package_manager.cleaner'),
       'sites/default',
       $locator->reveal()
     );