Add standard-xdrlib recipe

[beenje]

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I don't know if there has been discussions about this before.
Several modules were removed from Python 3.13. I maintain python-vxi11-feedstock which depends on xdrlib that was removed in Python 3.13.

The upstream package isn't maintained anymore: python-ivi/python-vxi11#49 but some people started to use standard-xdrlib from https://github.com/youknowone/python-deadlib as a workaround.
For example InstrumentKit.

I took example on backports.strenum-feedstock to package standard-xdrlib making one empty package for python <3.13 and the regular one for >=3.13.

[github-actions]

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

[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/standard-xdrlib/recipe.yaml) and found some lint.

Here's what I've got...

For recipes/standard-xdrlib/recipe.yaml:

• ❌ noarch packages can't have selectors. If the selectors are necessary, please remove noarch: python.

For recipes/standard-xdrlib/recipe.yaml:

• ℹ️ noarch: python recipes should usually follow the syntax in our documentation for specifying the Python version.
  • For the host section of the recipe, you should usually use the pin python ${{ python_min }}.* for the python entry.
  • If the package requires a newer Python version than the currently supported minimum version on conda-forge, you can override the python_min variable by adding a Jinja2 set statement at the top of your recipe (or using an equivalent context variable for v1 recipes).

_{This message was generated by GitHub Actions workflow run https://github.com/conda-forge/conda-forge-webservices/actions/runs/16732799137. Examine the logs at this URL for more detail.}

[beenje]

@conda-forge/help-python, this recipe is ready for review.

The linting service complains about the selectors and noarch: python. I copied that from backports.strenum-feedstock, so I think it's fine.