typst cannot compile when headings contain enclosed alphanumerics

Bug description

When headings contain enclosed alphanumerics, quarto documents fail to render to typst.
This appears to be an issue with quarto (or possibly pandoc?), not typst, and seems to be caused by the <heading> text that is added to the line following the ==heading

I have seen character rendering issues with some subset of unicode in ajax and, as a result, rstudio. A quick prod indicates that the issue is probably only with the enclosed alphanumerics.

Steps to reproduce

with the below document as test.qmd

---
format: 
    typst:
        keep-typ: true
---

### Test①

xxx

Actual behavior

% quarto render test.qmd -o test.pdf
pandoc -o test.typ
to: typst
standalone: true
shift-heading-level-by: -1
default-image-extension: svg
wrap: none
citeproc: false

metadata
title: ''

[typst]: Compiling test.typ to test.pdf...error: unclosed label
┌─ test.typ:300:0
│
300 │ <test①>
│ ^^^^^

The .typ output ends with:

== Test①
<test①>
xxx

Expected behavior

a rendered pdf

typst compile test.typ test1.pdf compiles the pdf with no issue if the <test①> line is removed:

== Test①
xxx

Your environment

MacOS Sequoia 15.4.1 (24E263)

quarto v1.6.40

pandoc v3.6.4

Quarto check output

Quarto 1.6.40
[✓] Checking environment information...
Quarto cache location: /Users/anthony/Library/Caches/quarto
[✓] Checking versions of quarto binary dependencies...
Pandoc version 3.4.0: OK
Dart Sass version 1.70.0: OK
Deno version 1.46.3: OK
Typst version 0.11.0: OK
[✓] Checking versions of quarto dependencies......OK
[✓] Checking Quarto installation......OK
Version: 1.6.40
Path: /Applications/quarto/bin

[✓] Checking tools....................OK
TinyTeX: (external install)
Chromium: (not installed)

[✓] Checking LaTeX....................OK
Using: TinyTex
Path: /Users/anthony/Library/TinyTeX/bin/universal-darwin
Version: 2024

[✓] Checking basic markdown render....OK

[✓] Checking Python 3 installation....OK
Version: 3.9.12 (Conda)
Path: /opt/anaconda3/bin/python
Jupyter: 4.9.2
Kernels: python3

(|) Checking Jupyter engine render....[IPKernelApp] ERROR | No such comm target registered: quarto_kernel_setup
[✓] Checking Jupyter engine render....OK

(/) Checking R installation...........During startup - Warning messages:
1: Setting LC_COLLATE failed, using "C"
2: Setting LC_TIME failed, using "C"
3: Setting LC_MESSAGES failed, using "C"
4: Setting LC_MONETARY failed, using "C"
[✓] Checking R installation...........OK
Version: 4.4.2
Path: /usr/local/Cellar/r/4.4.2_2/lib/R
LibPaths:
- /usr/local/lib/R/4.4/site-library
- /usr/local/Cellar/r/4.4.2_2/lib/R/library
knitr: 1.50
rmarkdown: 2.29

[✓] Checking Knitr engine render......OK