Update dependency react/promise-timer to ^1.9.0

Author: renovate[bot]

composer.json

@@ -21,7 +21,7 @@
         "react/event-loop": "^1.2",
         "react/promise": "^2.8",
         "react/promise-stream": "^1.2",
-        "react/promise-timer": "^1.6",
+        "react/promise-timer": "^1.9.0",
         "react/socket": "^1.9",
         "symfony/polyfill-php81": "^1.23",
         "thecodingmachine/safe": "^1.3.3",