Rebuild for CFEP-25 noarch: python syntax

[regro-cf-autotick-bot]

This PR updates the recipe to use the noarch: python syntax as described in CFEP-25. Please see our documentation for more details.

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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 (recipe/meta.yaml) and found some lint.

Here's what I've got...

For recipe/meta.yaml:

• ❌ license_file entry is missing, but is required.

For recipe/meta.yaml:

• ℹ️ No valid build backend found for Python recipe for package spylon-kernel using pip. Python recipes using pip need to explicitly specify a build backend in the host section. If your recipe has built with only pip in the host section in the past, you likely should add setuptools to the host section of your recipe.

_{This message was generated by GitHub Actions workflow run https://github.com/conda-forge/conda-forge-webservices/actions/runs/12576135377. Examine the logs at this URL for more detail.}