Dropping the react/promise dev requirement since 2 is not actually compatible with PHP 8.4

Author: jooname

composer.json

@@ -19,8 +19,7 @@
         "phpcompatibility/php-compatibility": ">=9.1.1",
         "squizlabs/php_codesniffer": ">=2.9.2",
         "phpmd/phpmd": ">=2.6.0",
-        "vaimo/composer-changelogs": "^1.0.0",
-        "react/promise": "^2"
+        "vaimo/composer-changelogs": "^1.0.0"
     },
     "conflict": {
         "cweagans/composer-patches": "*"