[Bug]: Fake Location problem when calling getCurrentPosition and getLastKnownPosition

### Please check the following before submitting a new issue.

- [x] I have searched the [existing issues](https://github.com/baseflow/flutter-geolocator/issues).
- [x] I have carefully [read the documentation](https://github.com/Baseflow/flutter-geolocator/blob/main/geolocator/README.md) and verified I have added the required platform specific configuration.

### Please select affected platform(s)

- [x] Android
- [ ] iOS
- [ ] Linux
- [ ] macOS
- [ ] Web
- [ ] Windows

### Steps to reproduce

Enable any fake location provider then
Running [Geolocator.getCurrentPosition] or [Geolocator.getLastKnownPosition] in a background isolate
my case was foreground service isolate

[Geolocator.getCurrentPosition] throws
Unhandled Exception: ParallelWaitError: The location service on the device is disabled.
also the location service is enabled

[Geolocator.getCurrentPosition] throws
[ERROR:flutter/runtime/dart_vm_initializer.cc(40)] Unhandled Exception: Lookup failed: getLastKnownPosition in @methods in LocationService in package:dawami/core/services/location/location_service.dart

all these function works well in the main isolate and the background service isolate unless I put a fake GPS locati
but all

### Expected results

To work like the main isolate

### Actual results

When enabling fake location app throws exceptions when getting location in background isolates

### Code sample

Code sample

```dart
[Paste your code here]
```

### Screenshots or video

Screenshots or video demonstration

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### Version

14.0.2

### Flutter Doctor output

Doctor output

```console
[Paste your output here]
```

Start with the Geolocator.getCurrentPosition and Geolocator.getLastKnownPosition entry points and the Android background-isolate behavior described in the report. Reproduce with a fake location provider in the main and foreground-service isolates; done means both calls work in the background as they do in the main isolate without the reported exceptions.

Written by the indexing model from the issue text.