Animation during orientation change is wrong

Expected:

Actual:

Reproduction:

```dart
import 'package:flutter/cupertino.dart';

void main() => runApp(const App());

class App extends StatelessWidget {
const App({super.key});

@override
Widget build(BuildContext context) {
return CupertinoApp(
home: Center(
child: Builder(builder: (BuildContext context) {
return CupertinoButton(
onPressed: () {
showCupertinoDialog(
context: context,
builder: (BuildContext context) => CupertinoAlertDialog(
title: const Text('The title'),
actions: [
CupertinoDialogAction(
child: const Text('One'),
onPressed: () {
Navigator.pop(context);
},
),
CupertinoDialogAction(
child: const Text('Two'),
onPressed: () {
Navigator.pop(context);
},
),
],
),
);
},
child: const Text('Flutter'),
);
}),
),
);
}
}
```

Running e9b4a6aa6fa8c7734b168bf2c9e84f1400fe2cb4 on a iPhone 16 Pro.