Add openfold-3

[sdvillal]

Checklist

• Title of this PR is meaningful: e.g. "Adding my_nifty_package", not "updated meta.yaml".
• License file is packaged (see here for an example).
• Source is from official source.
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• Build number is 0.
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Summary

This brings openfold-3 to conda-forge. We cand decide not to pre-compile the extensions if that is too complicated (current PR has the scaffolding for precompilation).

Waiting for kalign-python (see #32505).

When ready, ping conda-forge/help-python-c and conda-forge/help-c-cpp

[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/openfold/recipe.yaml) and found some lint.

Here's what I've got...

For recipes/openfold/recipe.yaml:

• ❌ requirements: run: func_timeout = "*" should not contain a space between relational operator and the version, i.e. func_timeout ="*"
• ❌ If python is a host requirement, it should be a run requirement.

_{This message was generated by GitHub Actions workflow run https://github.com/conda-forge/conda-forge-webservices/actions/runs/23110193571. Examine the logs at this URL for more detail.}

[github-actions]

Hi! This is the staged-recipes linter and I found some lint.

File-specific lints and/or hints:

• recipes/openfold/recipe.yaml:
  • lints:
    • The following maintainers have not yet confirmed that they are willing to be listed here: jnwei, jandom. Please ask them to comment on this PR if they are.

[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/openfold/recipe.yaml) and found it was in an excellent condition.

[github-actions]

Hi! This is the staged-recipes linter and your PR looks excellent! 🚀