Missing Ideographic Variation Sequences

### Description

Last IVS in token is lacked on typst 0.12.0.

```
#set text(font: "Noto Serif JP", weight: "bold")

近󠄁藤

近󠄁

#box("近󠄁")藤
```

![example](https://github.com/user-attachments/assets/34415df9-cb21-4474-9fff-d2529a1f4d19)


### Reproduction URL

_No response_

### Operating system

Windows

### Typst version

- [X] I am using the latest version of Typst