Fix CI

Author: vudaltsov

.github/workflows/check.yml

@@ -19,7 +19,7 @@ jobs:
         with:
           composer-options: --optimize-autoloader
         env:
-          COMPOSER_ROOT_VERSION: dev-main
+          COMPOSER_ROOT_VERSION: 0.4.x
       - run: composer validate
       - run: composer normalize --dry-run
       - run: composer check-require