v0.4.2

• Support Symfony 8: the symfony/cache and symfony/http-client dev constraints now allow ^8.0, and CI covers PHP 8.4 and 8.5. The minimum PHP requirement stays at 8.2 — Symfony 8 requires PHP 8.4, so Composer resolves Symfony 7.4 on PHP 8.2/8.3 and Symfony 8 on PHP 8.4+.
• Require x-graphql/http-schema ^0.9 for tests. The previous ^0.8 range pinned Composer to 0.8.2, which calls Executor::getPromiseAdapter() — removed in webonyx/graphql-php 15.17.0.