Relax CUDA 12 check in cross-compilation

[jakirkham]

The CUDA 12 cross-compilation check here is a no-op that specifically allows CUDA 12.0 to be used. However all CUDA 12.* versions support cross-compilation and none of them require the changes this script makes for CUDA 11 versions. So relax the check to allow any CUDA 12 version to work.

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Checklist

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

[conda-forge-webservices[bot]]

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.

[github-actions[bot]]

Hi! This is the friendly conda-forge automerge bot!

I considered the following status checks when analyzing this PR:

• linter: passed
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Thus the PR was passing and merged! Have a great day!