fixes [Chips with `onDeleted` callback should show the delete button in the `disabled` state](https://github.com/flutter/flutter/issues/136638)

### Code sample

<details>
<summary>expand to view the code sample</summary> 

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

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

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

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Example(),
    );
  }
}

class Example extends StatefulWidget {
  const Example({super.key});

  @override
  State<Example> createState() => _ExampleState();
}

class _ExampleState extends State<Example> {

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.spaceEvenly,
          children: <Widget>[
            RawChip(
              avatar: const Icon(Icons.favorite_rounded),
              label: const Text('RawChip'),
              onSelected: null,
              isEnabled: false,
              onDeleted: () {},
            ),
            InputChip(
              avatar: const Icon(Icons.favorite_rounded),
              label: const Text('InputChip'),
              isEnabled: false,
              onPressed: null,
              onDeleted: () {},
            ),
            FilterChip(
              avatar: const Icon(Icons.favorite_rounded),
              label: const Text('FilterChip'),
              onSelected: null,
              onDeleted: () {},
            ),
          ],
        ),
      ),
    );
  }
}
```

</details>

| Before | After |
| --------------- | --------------- |
| <img src="https://github.com/flutter/flutter/assets/48603081/8bd458de-cfd2-44f0-a0dd-a8298938c61f" /> | <img src="https://github.com/flutter/flutter/assets/48603081/afca0684-b061-416b-b029-5316588c6888" /> |