fix: Update amphp/parallel to fix compat issues

Signed-off-by: Marcel Klehr <[email protected]>

Author: marcelklehr

composer.json

@@ -4,6 +4,7 @@
         "ext-json": "*",
         "ext-pdo": "*",
         "rubix/ml": "2.x",
+        "amphp/parallel": "1.4.x",
         "bamarni/composer-bin-plugin": "^1.8"
     },
     "autoload": {