Map pin MarkerClicked event doesn't allow zoom in on pin location

### Description

Calling MoveToRegion inside a MarkerClicked event doesn't work. When the marker is clicked, it shows the info window, but does not zoom in to the pin as expected.

### Steps to Reproduce

Add a pin to a map. Add a MarkerClicked event to the pin with the following code:

```
Pin pin = (Pin)sender;
MapSpan mapSpan = MapSpan.FromCenterAndRadius(pin.Location, Distance.FromKilometers(1));
map.MoveToRegion(mapSpan);
```
Then click on the pin. The Info window is displayed but map does not zoom in.

### Link to public reproduction project repository

https://github.com/smitha-cgi/MarkerTest.git

_Must fix the API_KEY value in AndroidManifest.xml before building so that map tiles appear_

### Version with bug

7.0

### Last version that worked well

Unknown/Other

### Affected platforms

Android, I was *not* able test on other platforms

### Affected platform versions

Android 11 and up

### Did you find any workaround?

Change MarkerClicked event to use a timer for the MoveToRegion and it will work:

```
IDispatcherTimer timer = Application.Current.Dispatcher.CreateTimer();
timer.Interval = TimeSpan.FromMilliseconds(500);
timer.Tick += (s, e) =>
{
IDispatcherTimer timer = (IDispatcherTimer)s;
timer.Stop();

MapSpan mapSpan = MapSpan.FromCenterAndRadius(_selectedPin.Location, Distance.FromKilometers(1));

MainThread.BeginInvokeOnMainThread(() =>
{
map.MoveToRegion(mapSpan);
});
};

timer.Start();
```

### Relevant log output

_No response_

Start with the public reproduction project linked in the issue, fixing the API_KEY in AndroidManifest.xml so the map can be tested. Reproduce the MarkerClicked and MoveToRegion sequence on Android 11 or later, then compare it with the timer-based workaround. Done means MoveToRegion zooms to the pin from MarkerClicked without requiring a delayed timer.

Written by the indexing model from the issue text.