bug(MatSelect): With VoiceOver + Safari, VoiceOver doesn't read MatSelect options.

### Is this a regression?

- [ ] Yes, this behavior used to work in the previous version

### The previous version in which this bug was not present was

_No response_

### Description

Safari + VO does not read options in `mat-select`. It seems to work fine in Chrome, but Safari+VO seems to have the issue.

### Reproduction

Steps to reproduce:
1. Access [https://material.angular.io/components/select/overview](https://material.angular.io/components/select/overview) in Safari
2. Turn on voiceover
3. Navigate to with tab key
4. Open options panel with enter/space key
5. Navigate options with arrow down, arrow up key

### Expected Behavior

Voiceover read options
example) [https://material.angular.io/components/select/overview](https://material.angular.io/components/select/overview) in Chrome

https://user-images.githubusercontent.com/43070523/153293202-b6ba2a06-5c27-4d5c-8057-2e2942d0afe5.mov

### Actual Behavior

Voiceover does not read options

https://user-images.githubusercontent.com/43070523/153291632-f28713aa-aa3e-4e8e-92e4-d81d61a43190.mov

### Environment

- Angular: v11, v12, v13
- CDK/Material: Material
- Browser(s): Safari
- Operating System (e.g. Windows, macOS, Ubuntu): macOS

まず、Safari で VoiceOver を使用し、記載されているキーボード操作の手順に従って Material select overview で問題を再現し、Chrome と比較します。オプションの移動に関係する mat-select のアクセシビリティ動作を追跡します。矢印キーで移動したときに VoiceOver が各オプションを読み上げれば完了です。

索引モデルが issue の本文から書いたものです。