Bump cadwyn to 6.0.4 for py3.14 support (#63605)

Author: Dev-iL

airflow-core/pyproject.toml

@@ -82,7 +82,7 @@ dependencies = [
     "argcomplete>=1.10",
     "asgiref>=2.3.0",
     "attrs>=22.1.0, !=25.2.0",
-    "cadwyn>=6.0.3",
+    "cadwyn>=6.0.4",
     "colorlog>=6.8.2",
     "cron-descriptor>=1.2.24",
     "croniter>=2.0.2",