Add sphinx-typst-math

[munechika-koyo]

Checklist

• Title of this PR is meaningful: e.g. "Adding my_nifty_package", not "updated recipe".
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[conda-forge-admin]

Hi! This is the friendly automated conda-forge-linting service.

I wanted to let you know that I linted all conda-recipes in your PR (recipes/sphinx-typst-math/recipe.yaml) and found some lint.

Here's what I've got...

For recipes/sphinx-typst-math/recipe.yaml:

• ❌ context.python_min has a value that is interpreted as a floating-point number. Please quote it (like "3.11") to ensure that it is interpreted as string and preserved exactly.

_{This message was generated by GitHub Actions workflow run https://github.com/conda-forge/conda-forge-webservices/actions/runs/32953512949. Examine the logs at this URL for more detail.}

[conda-forge-admin]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipes/sphinx-typst-math/recipe.yaml) and found it was in an excellent condition.

[munechika-koyo]

@conda-forge/help-python ready to review!