Add IBM Plex Mono `otf` 
### Requirements

- [X] I have searched the [issues](https://github.com/ryanoasis/nerd-fonts/issues) for my request and found nothing related or helpful
- [X] I have checked the [FAQ](https://github.com/ryanoasis/nerd-fonts/wiki/FAQ-and-Troubleshooting) for help
- [X] I have reviewed the [Wiki](https://github.com/ryanoasis/nerd-fonts/wiki) for relevant information

### Problem Description

IBM Plex Mono `ttf` version render light

### Desired Solution

Please add IBM Plex Mono `otf` version because it render better than `ttf`

Thanks,

### Alternatives Considered

Add IBM Plex Mono `otf` version

### Additional Context

_No response_