backport natural earth download URL

[akrherz]

Pull in patch from SciTools/cartopy#1833

Checklist

• Used a personal fork of the feedstock to propose changes
• Bumped the build number (if the version is unchanged)
• Reset the build number to 0 (if the version changed)
• Re-rendered with the latest conda-smithy (Use the phrase @conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• Ensured the license file is being packaged.

@conda-forge-admin, please rerender

[conda-forge-linter]

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) and found some lint.

Here's what I've got...

For recipe:

• The source section contained an unexpected subsection name. patch is not a valid subsection name.

[conda-forge-linter]

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 (recipe) and found it was in an excellent condition.

[akrherz]

@conda-forge-admin, please rerender

[akrherz]

Hmmm, rerendering brought in proj 8, which will not work.

[akrherz]

I am unsure what to do here. I believe my patch is applying cleanly and at least Linux builds are happy. The failures are unrelated to my patch it seems.

[zklaus]

@akrherz, it seems like you need another runtime package for windows. Try adding the following to the requirements/run section of the meta.yaml:

    - ucrt  # [win]

[akrherz]

it seems like you need another runtime package for windows.

🙏 Thank you! CI is Green! 🚀

[xylar]

Thanks @akrherz and @zklaus! I'll go ahead and merge this.