bug(a11y): ion-input-password-toggle has hardcoded aria-label that cannot be customized

### Description

The `ion-input-password-toggle` component currently has a hardcoded `aria-label` for the password visibility toggle button. This `aria-label` cannot be customized, which makes it challenging to adapt the component for different languages and accessibility needs.

### Expected Behavior

There should be a way to customize the `aria-label` for the password toggle button in the `ion-input-password-toggle` component, allowing developers to set an accessible and localized label.

https://github.com/ionic-team/ionic-framework/blob/4bffe976d937e21c42649d010ce696b19962f6ef/core/src/components/input-password-toggle/input-password-toggle.tsx#L130C11-L130C37