iOS Periodic Task Not Triggering callbackDispatcher on Real Device but Works on Simulator

[rapkatt]

App does not trigger the callbackDispatcher method on a real iOS device. However, the task works as expected on the iOS simulator.

Steps to Reproduce:
1. Schedule the task with a repeat interval (e.g., 15 min).
2.Deploy the app to a real iOS device and wait for the periodic task to trigger.
3.The task not trigger callbackDispatcher on the real device.

Test Methods:
- Waited more than an hour to see if the task triggers on the real device.
- Used Xcode's Debug -> Simulate background fetch to manually trigger the task.

Results:
- The task triggers and executes callbackDispatcher as expected on the iOS simulator.
- The task does not trigger at all on the real device, even after waiting or simulating a background fetch in Xcode.

Expected Behavior
- The periodic task should trigger the callbackDispatcher method both on the iOS simulator and real devices.

Flutter version: 3.24.3
WorkManager version:
git: url: https://github.com/fluttercommunity/flutter_workmanager.git
ref: b783000
iOS version: 17.5.1
Device: 11 Pro Max