Issue #3425114: Add revolt/event-loop dependency to core

Closes #3425114

composer/Metapackage/CoreRecommended/composer.json

@@ -30,6 +30,7 @@
         "psr/http-factory": "~1.1.0",
         "psr/log": "~3.0.2",
         "ralouphie/getallheaders": "~3.0.3",
+        "revolt/event-loop": "~v1.0.6",
         "sebastian/diff": "~5.1.1",
         "symfony/console": "~v7.1.5",
         "symfony/dependency-injection": "~v7.1.3",