Remove Optional annotation from 'days' parameter in cleanup_jwds func…

…tion

Fixes a type error where Optional[int] caused incompatibility with datetime.timedelta(days=...). Removed the Optional annotation from the days parameter since it always defaults to 5, ensuring days is consistently treated as an integer and avoiding MyPy complaints.

lib/galaxy/celery/tasks.py

@@ -512,7 +512,7 @@ def dispatch_pending_notifications(notification_manager: NotificationManager):
 
 
 @galaxy_task(action="clean up job working directories")
-def cleanup_jwds(sa_session: galaxy_scoped_session, object_store: BaseObjectStore, days: Optional[float] = 5):
+def cleanup_jwds(sa_session: galaxy_scoped_session, object_store: BaseObjectStore, days: int = 5):
     """Cleanup job working directories for failed jobs that are older than X days"""
 
     def get_failed_jobs():