CheckboxAndroid and CheckboxIOS use MaterialCommunityIcon instead of custom icon function from PaperProvider

### Current behaviour

I have setup a custom icon in PaperProvider

```
import {FontAwesomeIcon} from '@fortawesome/react-native-fontawesome';
...

}}>
// ...

```

But `CheckboxAndroid` and `CheckboxIOS` only use `MaterialCommunityIcon` instead of the icon function from the `PaperProvider`

https://github.com/callstack/react-native-paper/blob/d6b6b667dec9d9d47a8e7ad3afbbd48289b31971/src/components/Checkbox/CheckboxAndroid.tsx#L135

### Expected behaviour
`CheckboxAndroid` and `CheckboxIOS` should use [`Icon`](https://github.com/callstack/react-native-paper/blob/main/src/components/Icon.tsx) instead of `MaterialCommunityIcon` for the check icons.

### How to reproduce?

https://snack.expo.dev/@jahirfiquitiva/greedy-yellow-turkish-delight

### Preview

### What have you tried so far?

### Your Environment

| software | version
| --------------------- | -------
| ios | 17.0.1
| android | x
| react-native | 0.72.6
| react-native-paper | 5.11.6
| node | v18.18.2
| npm or yarn | 4.0.1
| expo sdk | x.x.x

Start with the CheckboxAndroid.tsx location linked in the issue, then inspect CheckboxIOS and src/components/Icon.tsx. Verify how the custom PaperProvider icon function is accessed and confirm that both checkbox components use it for their check icons. Done means the provided FontAwesome icon renders for checkboxes on Android and iOS.

Written by the indexing model from the issue text.