Expand Symfony and other dependencies to support version 8.0

Updated `composer.json` to include compatibility with Symfony 8.0 and revised other dependencies (e.g., `deptrac`, `infection`) to newer supported versions. This ensures the codebase remains future-proof and compatible with the latest releases.

Author: Spomky

composer.json

@@ -116,5 +116,6 @@
             "php-http/discovery": true,
             "infection/extension-installer": false
         }
-    }
+    },
+    "minimum-stability": "dev"
 }