Update dependency react/promise to v3

Author: renovate[bot]

composer.json

@@ -14,7 +14,7 @@
         "ext-parallel": "*",
         "react-parallel/event-loop": "dev-master as 2.0",
         "react/event-loop": "^1.5",
-        "react/promise": "^2.8",
+        "react/promise": "^2.8 || ^3.0",
         "reactivex/rxphp": "^2.0",
         "wyrihaximus/constants": "^1.6",
         "wyrihaximus/react-awaitable-observable": "^1.1"