bug: Ion Input ClearInputIcon not working - Angular

### Prerequisites

- [x] I have read the [Contributing Guidelines](https://github.com/ionic-team/ionic-framework/blob/main/docs/CONTRIBUTING.md#creating-an-issue).
- [x] I agree to follow the [Code of Conduct](https://ionicframework.com/code-of-conduct).
- [x] I have searched for [existing issues](https://github.com/ionic-team/ionic-framework/issues) that already report this problem, without success.

### Ionic Framework Version

v8.x

### Current Behavior

When using ion-input there is a property clearInputIcon where we can put the name of an imported icon as a string, it should replace the icon for the clear option when clearInput property is set to true but I only get the default one

### Expected Behavior

When using ion-input there is a property clearInputIcon where we can put the name of an imported icon as a string, it should replace the icon for the clear option when clearInput property is set to true.

### Steps to Reproduce

1. In HTML Set an ion-input
2. Set property clearInput to true
3. Set property clearInputIcon to an icon for example "analytics-outline"
4. In TS/JS import analyticsOutline from ionicons with the addIcons method
5. You will see that the icon does not change

### Code Reproduction URL

https://stackblitz.com/edit/fhf2js9x

### Ionic Info

/

### Additional Information

I've tested multiple things and the only to make it work is to use the property with binding [] syntax
The problem is that clearInputIcon is not recognized and we need to use the CUSTOM_ELEMENT_SCHEMA which should not happen (since the other properties for example clearInput do not need them).

Without this the component does not seem to recognize and user the clearInputIcon property on the ion-input

Can you check and confirm please ? We should be able to use this property as the other one easily without this, moreover this is not specified in the documentation.